modiloader | 79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 23:14

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General

Target

79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
Size

90KB
MD5

48c6f461a359dfec64972611b9cad1ca
SHA1

ba5b36950c5fd6f0cd0a39ebe6b9a97558da92fd
SHA256

79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef
SHA512

bded971437ba47d00263c9e00de337dd08494674db9c10fb578e83f98c636fe94fcaa8d0f64eab11d2dba5c7d9d6628b2b0feb6e8cfc31d1b021c9915b35dd65
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

ModiLoader Second Stage 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3112-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-48-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

1960 csrsll.exe
3484 csrsll.exe
3112 csrsll.exe

pid	process
1960	csrsll.exe
3484	csrsll.exe
3112	csrsll.exe

UPX packed file 18 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4884-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4000-3-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4000-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4884-9-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4000-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/1960-33-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3112-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1960-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3112-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3112-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4000-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1960-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3112-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3112-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3112-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3484-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3112-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.execsrsll.exe

description	pid	process	target process
PID 4884 set thread context of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 1960 set thread context of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 set thread context of 3112	1960	csrsll.exe	csrsll.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.execsrsll.execsrsll.exe

pid process

4884 79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
4000 79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
1960 csrsll.exe
3484 csrsll.exe

pid	process
4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
1960	csrsll.exe
3484	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.execmd.execsrsll.exe

description	pid	process	target process
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4884 wrote to memory of 4000	4884	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
PID 4000 wrote to memory of 4348	4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	cmd.exe
PID 4000 wrote to memory of 4348	4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	cmd.exe
PID 4000 wrote to memory of 4348	4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	cmd.exe
PID 4348 wrote to memory of 4528	4348	cmd.exe	reg.exe
PID 4348 wrote to memory of 4528	4348	cmd.exe	reg.exe
PID 4348 wrote to memory of 4528	4348	cmd.exe	reg.exe
PID 4000 wrote to memory of 1960	4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	csrsll.exe
PID 4000 wrote to memory of 1960	4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	csrsll.exe
PID 4000 wrote to memory of 1960	4000	79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3484	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe
PID 1960 wrote to memory of 3112	1960	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
"C:\Users\Admin\AppData\Local\Temp\79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4884

C:\Users\Admin\AppData\Local\Temp\79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe
"C:\Users\Admin\AppData\Local\Temp\79e3da18cad118750b7213a38a55508498846a4c5ea033da49b7e481439ea5ef.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4000

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JOKLW.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:4348

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
4⤵
- Adds Run key to start application
PID:4528

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1960

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3484

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
4⤵
- Executes dropped EXE
PID:3112

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\JOKLW.txt
Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
90KB

MD5
6f4a51e0bf5e79b01f741717a938b64a

SHA1
6c686c26e424c1946ab89c37fb46c075f8f7b0a6

SHA256
cd737a977723139326b1a123425da9ecb35168d0cab6498a8792ab4b101f8b79

SHA512
9daaff3d725e1ca9a8718187d86c9d9900c2f9cdf2f692ca4a937bece94a6753489fee1d3656526be4003dd670c06966da226d002af7e8e98aa356ab9456b07f

Download Submit
memory/1960-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1960-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1960-33-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3112-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3484-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4000-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4000-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4000-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4000-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4884-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4884-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4884-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4884-5-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download