formbook | 31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c

General

Target

31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
Size

657KB
MD5

e38caf7ccf443119181d0b739da5bea9
SHA1

6dbc324c29f8d9e200ec19f109359b8a18a05a6c
SHA256

31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c
SHA512

32e273fba187ebf146988ecd7029df7ea5242107abbadb39c1b055de2b56345d506a49cbf10974e55066db84ff97cc92f4a3624e8ef53753c40562bfebd35e4e
SSDEEP

12288:V4A1sgWxpBfcLbTCMsQO2qMc6/tnukBQ82uh1LPkV9:KGApBuTbnd/PQJ45k

Score

10^/10

formbook hy08 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hy08

Decoy

weazc.top

servoceimmpajhnuz.info

vqemkdhi.xyz

wergol.com

spa-mk.com

rtpsid88.life

tatetits.fun

raidsa.xyz

suojiansuode.net

jointhejunction.com

wudai.net

typeboot.shop

mksport-app.com

miocloud.ovh

taipan77pandan.com

wwwhg58a.com

khuahamiksai31.pro

carpedatumllc.net

safebinders.com

krx21.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2768-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2756	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2088 set thread context of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
2768	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
2756	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
Token: SeDebugPrivilege	2756	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2756	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	30
PID 2088 wrote to memory of 2756	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	30
PID 2088 wrote to memory of 2756	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	30
PID 2088 wrote to memory of 2756	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	30
PID 2088 wrote to memory of 2736	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	32
PID 2088 wrote to memory of 2736	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	32
PID 2088 wrote to memory of 2736	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	32
PID 2088 wrote to memory of 2736	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	32
PID 2088 wrote to memory of 2060	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	34
PID 2088 wrote to memory of 2060	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	34
PID 2088 wrote to memory of 2060	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	34
PID 2088 wrote to memory of 2060	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	34
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35
PID 2088 wrote to memory of 2768	2088	31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe	35

C:\Users\Admin\AppData\Local\Temp\31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
"C:\Users\Admin\AppData\Local\Temp\31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XZvwwz.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2756
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XZvwwz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC1E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
  "C:\Users\Admin\AppData\Local\Temp\31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe"
  2⤵
  PID:2060
- C:\Users\Admin\AppData\Local\Temp\31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe
  "C:\Users\Admin\AppData\Local\Temp\31e72c74ceffd7ffed03d6759c179cabf172f41a8a876a33d60080c27455060c.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBC1E.tmp

Filesize
1KB

MD5
61e9fc7792ee89c6730e23c36f884d41

SHA1
6580a022143b6d6cfa7a0e514eefc176a4cba027

SHA256
cfb7f787ca028fc36370caee124f723d5466cfb010cb9b54dac040eb3523130d

SHA512
9e76654a272d1b5278db74594cac96f799f0453ca3b745b7870b98b8fb606915e96dff7e370969ed6d161881423a06ac9835e555cea7bcdb5a7b904dda7305a7

Download Submit
memory/2088-6-0x0000000006060000-0x00000000060D6000-memory.dmp

Filesize
472KB

Download
memory/2088-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2088-3-0x00000000003C0000-0x00000000003D0000-memory.dmp

Filesize
64KB

Download
memory/2088-4-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2088-5-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2088-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2088-1-0x0000000000310000-0x00000000003BA000-memory.dmp

Filesize
680KB

Download
memory/2088-20-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2768-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2768-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2768-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads