formbook | 2a8783a8fa5d2994fdce8d2bce2aeb59434d13534e9f13ccae8de38f72f0798f

General

Target

shegro2.1.exe
Size

236KB
MD5

fe7fb44408912cfcc134fece3697776b
SHA1

f4ba9fd0270bcd4ce6090e950cdeae5bd9880432
SHA256

2a8783a8fa5d2994fdce8d2bce2aeb59434d13534e9f13ccae8de38f72f0798f
SHA512

f3848e8410fa82a497634f6888f19483cb6f65a7a16d1b85921d0d3e2e710c167b82dd27ab163cf83270a3bcc2cdeed7b6264c084c37b1a887e35c1b492f86db
SSDEEP

6144:PYa6erNOk21nYN/GQT/J/gUNF8vx+SdJmdMmitT:PYIJEYN/GiJ4GF8vx3dJmdZG

Score

10^/10

formbook sy18 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sy18

Decoy

mgn4.com

gemellebeauty.com

emj2x.top

melissamcduffee.com

holangman.top

cqmksw.com

pinax.info

u2sr03.shop

weighing.xyz

jetcasinosite-official6.top

xyz.ngo

suandoc.xyz

aboutwean.site

stockprob.com

bawdydesignz.com

buddybooster.net

scuderiaexotics.com

design-de-interiores.wiki

shipsmartstore.com

patricklloydrunning.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/1324-62-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1324-65-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1496-73-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/1496-74-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1256	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1628	shegro2.1.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1628 set thread context of 1324	1628	shegro2.1.exe	27
PID 1324 set thread context of 1192	1324	shegro2.1.exe	15
PID 1496 set thread context of 1192	1496	systray.exe	15

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1324	shegro2.1.exe
1324	shegro2.1.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe
1496	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1192	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1628	shegro2.1.exe
1324	shegro2.1.exe
1324	shegro2.1.exe
1324	shegro2.1.exe
1496	systray.exe
1496	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	shegro2.1.exe
Token: SeDebugPrivilege	1496	systray.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 1324	1628	shegro2.1.exe	27
PID 1628 wrote to memory of 1324	1628	shegro2.1.exe	27
PID 1628 wrote to memory of 1324	1628	shegro2.1.exe	27
PID 1628 wrote to memory of 1324	1628	shegro2.1.exe	27
PID 1628 wrote to memory of 1324	1628	shegro2.1.exe	27
PID 1192 wrote to memory of 1496	1192	Explorer.EXE	28
PID 1192 wrote to memory of 1496	1192	Explorer.EXE	28
PID 1192 wrote to memory of 1496	1192	Explorer.EXE	28
PID 1192 wrote to memory of 1496	1192	Explorer.EXE	28
PID 1496 wrote to memory of 1256	1496	systray.exe	29
PID 1496 wrote to memory of 1256	1496	systray.exe	29
PID 1496 wrote to memory of 1256	1496	systray.exe	29
PID 1496 wrote to memory of 1256	1496	systray.exe	29

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\shegro2.1.exe
  "C:\Users\Admin\AppData\Local\Temp\shegro2.1.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Users\Admin\AppData\Local\Temp\shegro2.1.exe
    "C:\Users\Admin\AppData\Local\Temp\shegro2.1.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1324
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1496
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\shegro2.1.exe"
    3⤵
    - Deletes itself
    PID:1256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsy234C.tmp\jnvtgbomfe.dll

Filesize
4KB

MD5
236bddbd45b2ecabfca5a9e1aec6604e

SHA1
d04ab12768dd2401877c7e92bc6a89f5188b98fc

SHA256
cd8f85488967fd784f34554ce2598ff0c935818d5f81d7e9303e8985e3e58db0

SHA512
c33c10a62c6a29312756f91a85365363885f942cfecfecbe3841d16c5c2588e0b5d4f7778e5bc20ecbb11363710bf890b33e65d1fad6bccc5291bd643eff0bf6

Download Submit
\Users\Admin\AppData\Local\Temp\nsy234C.tmp\jnvtgbomfe.dll

Filesize
4KB

MD5
236bddbd45b2ecabfca5a9e1aec6604e

SHA1
d04ab12768dd2401877c7e92bc6a89f5188b98fc

SHA256
cd8f85488967fd784f34554ce2598ff0c935818d5f81d7e9303e8985e3e58db0

SHA512
c33c10a62c6a29312756f91a85365363885f942cfecfecbe3841d16c5c2588e0b5d4f7778e5bc20ecbb11363710bf890b33e65d1fad6bccc5291bd643eff0bf6

Download Submit
memory/1192-77-0x0000000004CE0000-0x0000000004E23000-memory.dmp

Filesize
1.3MB

Download
memory/1192-67-0x00000000049D0000-0x0000000004AB2000-memory.dmp

Filesize
904KB

Download
memory/1192-81-0x0000000004CE0000-0x0000000004E23000-memory.dmp

Filesize
1.3MB

Download
memory/1192-82-0x000007FECD630000-0x000007FECD63A000-memory.dmp

Filesize
40KB

Download
memory/1192-78-0x0000000004CE0000-0x0000000004E23000-memory.dmp

Filesize
1.3MB

Download
memory/1324-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1324-64-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1324-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1324-66-0x00000000003E0000-0x00000000003F4000-memory.dmp

Filesize
80KB

Download
memory/1496-71-0x0000000000CC0000-0x0000000000CC5000-memory.dmp

Filesize
20KB

Download
memory/1496-76-0x0000000000450000-0x00000000004E3000-memory.dmp

Filesize
588KB

Download
memory/1496-74-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1496-72-0x00000000020D0000-0x00000000023D3000-memory.dmp

Filesize
3.0MB

Download
memory/1496-73-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1496-69-0x0000000000CC0000-0x0000000000CC5000-memory.dmp

Filesize
20KB

Download

Analysis

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