formbook | 780c4d3a33c89cd911190c17d7ba3ad69e5ddc66396762e4bef8ff67bd45b7b5

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20-06-2024 06:18

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General

Target

lhDCR5RvXwLbWQu.exe
Size

903KB
MD5

66bbfd82c0b1bdd60dca1d71945b42c2
SHA1

467d4125a380f1672983c51f1a4706f039b890af
SHA256

780c4d3a33c89cd911190c17d7ba3ad69e5ddc66396762e4bef8ff67bd45b7b5
SHA512

ca85a5e898139ad5e437a66c99baee9c8408773a214d37df02bad4388f8d5ab30cb240985b8869c1e36d971c9615da236e90de20d3a3e091b13caded01fa2bbf
SSDEEP

12288:4SiJkBoxXIFykQzrAVZK3B6xNYUCSPGnsV9nJyJ+XwrwILkz4ZTyrhbjjq5jCkj4:37wWg4NtCSPGGkUNW2rJjq5uM4

Score

10^/10

formbook dy13 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dy13

Decoy

manga-house.com

kjsdhklssk51.xyz

b0ba138.xyz

bt365033.com

ccbsinc.net

mrwine.xyz

nrxkrd527o.xyz

hoshi.social

1912ai.com

serco2020.com

byfchfyr.xyz

imuschestvostorgov.online

austinheafey.com

mrdfa.club

883106.photos

profitablefxmarkets.com

taini00.net

brye.top

ginsm.com

sportglid.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3664-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3664-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3664-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3208-27-0x00000000004E0000-0x000000000050F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

lhDCR5RvXwLbWQu.exelhDCR5RvXwLbWQu.execmstp.exe

description	pid	process	target process
PID 1532 set thread context of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 3664 set thread context of 3432	3664	lhDCR5RvXwLbWQu.exe	Explorer.EXE
PID 3664 set thread context of 3432	3664	lhDCR5RvXwLbWQu.exe	Explorer.EXE
PID 3208 set thread context of 3432	3208	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

lhDCR5RvXwLbWQu.exelhDCR5RvXwLbWQu.execmstp.exe

pid	process
1532	lhDCR5RvXwLbWQu.exe
1532	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe
3208	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

lhDCR5RvXwLbWQu.execmstp.exe

pid process

3664 lhDCR5RvXwLbWQu.exe
3664 lhDCR5RvXwLbWQu.exe
3664 lhDCR5RvXwLbWQu.exe
3664 lhDCR5RvXwLbWQu.exe
3208 cmstp.exe
3208 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

lhDCR5RvXwLbWQu.exelhDCR5RvXwLbWQu.execmstp.exe

description pid process

Token: SeDebugPrivilege 1532 lhDCR5RvXwLbWQu.exe
Token: SeDebugPrivilege 3664 lhDCR5RvXwLbWQu.exe
Token: SeDebugPrivilege 3208 cmstp.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

Explorer.EXE

pid process

3432 Explorer.EXE
3432 Explorer.EXE
3432 Explorer.EXE
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

Explorer.EXE

pid process

3432 Explorer.EXE
3432 Explorer.EXE
3432 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3432 Explorer.EXE

pid	process
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3664	lhDCR5RvXwLbWQu.exe
3208	cmstp.exe
3208	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	1532	lhDCR5RvXwLbWQu.exe
Token: SeDebugPrivilege	3664	lhDCR5RvXwLbWQu.exe
Token: SeDebugPrivilege	3208	cmstp.exe

pid	process
3432	Explorer.EXE
3432	Explorer.EXE
3432	Explorer.EXE

pid	process
3432	Explorer.EXE
3432	Explorer.EXE
3432	Explorer.EXE

pid	process
3432	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

lhDCR5RvXwLbWQu.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1532 wrote to memory of 4668	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 4668	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 4668	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1532 wrote to memory of 3664	1532	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 3432 wrote to memory of 3208	3432	Explorer.EXE	cmstp.exe
PID 3432 wrote to memory of 3208	3432	Explorer.EXE	cmstp.exe
PID 3432 wrote to memory of 3208	3432	Explorer.EXE	cmstp.exe
PID 3208 wrote to memory of 452	3208	cmstp.exe	cmd.exe
PID 3208 wrote to memory of 452	3208	cmstp.exe	cmd.exe
PID 3208 wrote to memory of 452	3208	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3432

C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe
"C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532

C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe
"C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
3⤵
PID:4668

C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe
"C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3664

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3208

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
3⤵
PID:452

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1532-15-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/1532-2-0x0000000006020000-0x00000000065C4000-memory.dmp

Filesize
5.6MB

Download
memory/1532-0-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/1532-3-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/1532-4-0x0000000005A40000-0x0000000005A4A000-memory.dmp

Filesize
40KB

Download
memory/1532-5-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/1532-6-0x0000000005D30000-0x0000000005DCC000-memory.dmp

Filesize
624KB

Download
memory/1532-7-0x0000000006B00000-0x000000000702C000-memory.dmp

Filesize
5.2MB

Download
memory/1532-8-0x0000000005DE0000-0x0000000005DF2000-memory.dmp

Filesize
72KB

Download
memory/1532-9-0x0000000005E00000-0x0000000005E08000-memory.dmp

Filesize
32KB

Download
memory/1532-10-0x0000000005F60000-0x0000000005F6C000-memory.dmp

Filesize
48KB

Download
memory/1532-11-0x0000000009770000-0x00000000097F4000-memory.dmp

Filesize
528KB

Download
memory/1532-12-0x0000000009B90000-0x0000000009C06000-memory.dmp

Filesize
472KB

Download
memory/1532-1-0x0000000000F50000-0x0000000001038000-memory.dmp

Filesize
928KB

Download
memory/3208-27-0x00000000004E0000-0x000000000050F000-memory.dmp

Filesize
188KB

Download
memory/3208-26-0x0000000000D50000-0x0000000000D66000-memory.dmp

Filesize
88KB

Download
memory/3208-25-0x0000000000D50000-0x0000000000D66000-memory.dmp

Filesize
88KB

Download
memory/3432-37-0x0000000009200000-0x00000000092AC000-memory.dmp

Filesize
688KB

Download
memory/3432-20-0x000000000B080000-0x000000000B1E9000-memory.dmp

Filesize
1.4MB

Download
memory/3432-39-0x0000000009200000-0x00000000092AC000-memory.dmp

Filesize
688KB

Download
memory/3432-24-0x0000000008CD0000-0x0000000008D88000-memory.dmp

Filesize
736KB

Download
memory/3432-35-0x0000000009200000-0x00000000092AC000-memory.dmp

Filesize
688KB

Download
memory/3432-30-0x0000000008CD0000-0x0000000008D88000-memory.dmp

Filesize
736KB

Download
memory/3432-29-0x000000000B080000-0x000000000B1E9000-memory.dmp

Filesize
1.4MB

Download
memory/3664-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3664-23-0x0000000001910000-0x0000000001925000-memory.dmp

Filesize
84KB

Download
memory/3664-19-0x00000000014F0000-0x0000000001505000-memory.dmp

Filesize
84KB

Download
memory/3664-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3664-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3664-16-0x0000000001970000-0x0000000001CBA000-memory.dmp

Filesize
3.3MB

Download