formbook | 37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30

General

Target

37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe
Size

741KB
MD5

a80b0f238e276d18a60b69987e3971ac
SHA1

505fff2c677555ed2a6faaff2cd070829c1e545e
SHA256

37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30
SHA512

8dbb433c2f5dcec0bea4579ac475b8c9e9cf26e3cb75aad1e3b70a889331e9ad8eedb735422a5f73496b7105fb4ec5a29acaef3cceeece2edaa526685d752543
SSDEEP

12288:cIzjLf30WH0TwOqp06yaHZQla0tJfFFg4vqtwnZS8Qp7xQ6JtpOQ5tRyMJTQA6OH:Xjj0ywkpNXWlTJfF1CeWxxxT9tRWAtH

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/2876-19-0x0000000000400000-0x000000000042F000-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
2832	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34

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	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.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
2880	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2832	powershell.exe
2876	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 2832	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	30
PID 2752 wrote to memory of 2832	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	30
PID 2752 wrote to memory of 2832	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	30
PID 2752 wrote to memory of 2832	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	30
PID 2752 wrote to memory of 2880	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	32
PID 2752 wrote to memory of 2880	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	32
PID 2752 wrote to memory of 2880	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	32
PID 2752 wrote to memory of 2880	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	32
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34
PID 2752 wrote to memory of 2876	2752	37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe	34

C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe
"C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fECBldIROsE.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2832
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fECBldIROsE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B9C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2880
- C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe
  "C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2876

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\tmp1B9C.tmp

Filesize
1KB

MD5
ab48f336088cb7fc7ed8b4a67ebd214a

SHA1
a0642a49a6a3207ed8543734408ee45910bf664a

SHA256
16fe9843bf81cb60911a5da7c8e7d66e9dd2652d49d6ab3f5c2c29c3f212dd5c

SHA512
c995e0179e69cf6bd2895128e0cd7cf8513785e0999acabf763e1ea7347dca99686cfc32695620d36e18d528fedb910a1a5b4b8ac7afdfee27dbeafd8f515285

Download Submit
memory/2752-6-0x00000000051F0000-0x0000000005266000-memory.dmp

Filesize
472KB

Download
memory/2752-2-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-3-0x0000000000510000-0x0000000000528000-memory.dmp

Filesize
96KB

Download
memory/2752-4-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

Filesize
4KB

Download
memory/2752-5-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

Filesize
4KB

Download
memory/2752-1-0x0000000000850000-0x000000000090E000-memory.dmp

Filesize
760KB

Download
memory/2752-20-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads