formbook | 4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6

General

Target

4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe
Size

580KB
MD5

082d39cfd34b71fcbcd6fde04630a9da
SHA1

0158f6fc8b93a002d854eeea2a67fc1e6cae6781
SHA256

4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6
SHA512

10b9f414c84e95acd51225e600cf8b36627832986cf01cb5864bf134755546cae5db24f86b60a9364214d140f7761670b7ee67819d7b0519e7de3f9173461fbe
SSDEEP

12288:8zJGCGrsE1JwH6lWGs6jwt4IRBFGJgoUo1ID7BPQ:8zMCYsE12HSWGWt42Gmm16B

Score

10^/10

formbook t18n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t18n

Decoy

tmusicoregon.net

atici.online

j7u7.xyz

iewunucierwuerwnziqi1.info

ruvabetgiris.website

acik.lat

obsk.top

sphaltpaving-ttp1-shd-us-2.shop

ispensarynearme.news

b3nd.bond

urelook.xyz

gearlpfbm.top

aconstructionjob.bond

killsnexis.info

oshon.xyz

ashabsxw.top

ussiatraiding.buzz

raipsehumus.homes

6ae23rx.forum

edar88vvip.shop

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2776-16-0x0000000000400000-0x000000000042F000-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
2280	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.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 2 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2280	powershell.exe
1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe
1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe
2776	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	powershell.exe
Token: SeDebugPrivilege	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2280	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	31
PID 1940 wrote to memory of 2280	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	31
PID 1940 wrote to memory of 2280	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	31
PID 1940 wrote to memory of 2280	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	31
PID 1940 wrote to memory of 2760	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	33
PID 1940 wrote to memory of 2760	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	33
PID 1940 wrote to memory of 2760	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	33
PID 1940 wrote to memory of 2760	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	33
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34
PID 1940 wrote to memory of 2776	1940	4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe	34

C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe
"C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2280
- C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe
  "C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe"
  2⤵
  PID:2760
- C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe
  "C:\Users\Admin\AppData\Local\Temp\4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/1940-6-0x0000000004D70000-0x0000000004DE6000-memory.dmp

Filesize
472KB

Download
memory/1940-0-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/1940-2-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-3-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/1940-4-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-5-0x00000000005A0000-0x00000000005B2000-memory.dmp

Filesize
72KB

Download
memory/1940-1-0x00000000011F0000-0x0000000001288000-memory.dmp

Filesize
608KB

Download
memory/1940-7-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-17-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-8-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2776-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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