81d522b210d792d32e3d44735e3c7c39a57eae172f5520fa4b55ed1007efdea0

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2024 14:16

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General

Target

1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe
Size

659KB
MD5

1a706d5383c7092d51ca8e7f12530649
SHA1

4aa83450fdc8e594697ea541518949c2a04bb7b0
SHA256

81d522b210d792d32e3d44735e3c7c39a57eae172f5520fa4b55ed1007efdea0
SHA512

406626bb597e60325fcd168eeaca763b27cf7bd206ecf3cc2a253d54a80934d0b10616a3cb92fd67c91bfa04417ede23c07054f0d3a8d87f210cc5d958330cf4
SSDEEP

12288:d5RdOR3PHKhGLxe0DA8PSTRK8AYHv1L8qKtZTln7NEakAR8+JU/w:H3OR3PHKux7DA8PMfrHUtZhnxEa9R8tY

Score

8^/10

persistence vmprotect

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

Processes:

1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\.Net CLR\Parameters\ServiceDll = "C:\\Windows\\system32\\e57d522.dll"	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

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:

1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation 1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe
Loads dropped DLL 3 IoCs

Processes:

1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exesvchost.exerundll32.exe

pid process

1564 1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe
3284 svchost.exe
3224 rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

pid	process
1564	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe
3284	svchost.exe
3224	rundll32.exe

VMProtect packed file 4 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral2/memory/1564-13-0x00000000755F0000-0x0000000075779000-memory.dmp	vmprotect
C:\Windows\SysWOW64\e57d522.dll	vmprotect
behavioral2/memory/3284-19-0x00000000755F0000-0x0000000075779000-memory.dmp	vmprotect
behavioral2/memory/3224-21-0x00000000755F0000-0x0000000075779000-memory.dmp	vmprotect

Drops file in System32 directory 1 IoCs

Processes:

1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

description ioc process

File created C:\Windows\SysWOW64\e57d522.dll 1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3224 rundll32.exe
3224 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

description pid process

Token: SeIncBasePriorityPrivilege 1564 1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

description	ioc	process
File created	C:\Windows\SysWOW64\e57d522.dll	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

pid	process
3224	rundll32.exe
3224	rundll32.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1564	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

svchost.exe1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe

description	pid	process	target process
PID 3284 wrote to memory of 3224	3284	svchost.exe	rundll32.exe
PID 3284 wrote to memory of 3224	3284	svchost.exe	rundll32.exe
PID 3284 wrote to memory of 3224	3284	svchost.exe	rundll32.exe
PID 1564 wrote to memory of 3212	1564	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe	cmd.exe
PID 1564 wrote to memory of 3212	1564	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe	cmd.exe
PID 1564 wrote to memory of 3212	1564	1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1a706d5383c7092d51ca8e7f12530649_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\1A706D~1.EXE" > nul
2⤵
PID:3212

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k ".Net CLR"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3284

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe c:\windows\system32\e57d522.dll, Launch
2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3224

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=2736,i,11069752405888604640,8928124405695604965,262144 --variations-seed-version --mojo-platform-channel-handle=4192 /prefetch:8
1⤵
PID:2948

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\SysWOW64\e57d522.dll
Filesize
371KB

MD5
e4060e2410ea64e00f85d83bfb137bfb

SHA1
f230ecb9b0d8bc88ec0f82ce74c80143b2e5458a

SHA256
fe30c3f8c5e47e7a9b51404357dd96281062f08ff6a2230f1edf5f807bd43c75

SHA512
83a518435605bd7b7150539061dfb8b63da24cbc59c9d4db909120314e4eae24a0cb1e675b52c4567365f261d9bc6cda54a6a901b243d40b0f3238ad1e3175dd

Download Submit
memory/1564-6-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/1564-9-0x0000000002130000-0x0000000002220000-memory.dmp

Filesize
960KB

Download
memory/1564-14-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/1564-13-0x00000000755F0000-0x0000000075779000-memory.dmp

Filesize
1.5MB

Download
memory/1564-4-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/1564-7-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/1564-5-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/1564-0-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/1564-12-0x0000000002280000-0x0000000002420000-memory.dmp

Filesize
1.6MB

Download
memory/1564-3-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/1564-2-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/1564-1-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/1564-24-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/1564-25-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/3224-21-0x00000000755F0000-0x0000000075779000-memory.dmp

Filesize
1.5MB

Download
memory/3284-19-0x00000000755F0000-0x0000000075779000-memory.dmp

Filesize
1.5MB

Download