formbook | 81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd

General

Target

81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
Size

1.1MB
MD5

07c144d5f9c5a69037c579899fd39e18
SHA1

7af0bdd8a309b7e2c6a78cca7c44ebd6435e427b
SHA256

81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd
SHA512

690a97afb907a1ebbf3da293379d3122bf44fbec5cbb28d3b1b3a7bd49e5be023f2ebb8a791c5aaaf8685746d776c1b3382322496e40b4a7888d1fd562e89dda
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCJzR2shY7LTNouXqGu:7JZoQrbTFZY1iaCpIUY7LGSC

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2092-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2092-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1620-12-0x0000000000190000-0x00000000001BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 2092	1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe	30
PID 2092 set thread context of 1284	2092	svchost.exe	21
PID 1620 set thread context of 1284	1620	mstsc.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2092	svchost.exe
2092	svchost.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe
1620	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
2092	svchost.exe
2092	svchost.exe
2092	svchost.exe
1620	mstsc.exe
1620	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	svchost.exe
Token: SeDebugPrivilege	1620	mstsc.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2092	1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe	30
PID 1680 wrote to memory of 2092	1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe	30
PID 1680 wrote to memory of 2092	1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe	30
PID 1680 wrote to memory of 2092	1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe	30
PID 1680 wrote to memory of 2092	1680	81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe	30
PID 1284 wrote to memory of 1620	1284	Explorer.EXE	31
PID 1284 wrote to memory of 1620	1284	Explorer.EXE	31
PID 1284 wrote to memory of 1620	1284	Explorer.EXE	31
PID 1284 wrote to memory of 1620	1284	Explorer.EXE	31
PID 1620 wrote to memory of 2360	1620	mstsc.exe	32
PID 1620 wrote to memory of 2360	1620	mstsc.exe	32
PID 1620 wrote to memory of 2360	1620	mstsc.exe	32
PID 1620 wrote to memory of 2360	1620	mstsc.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe
  "C:\Users\Admin\AppData\Local\Temp\81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\81c2c232727f026964d15be5913f2c59921d6fd74f236c1b4f156bd1db84a7cd.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2092
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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/1284-8-0x00000000050F0000-0x000000000529F000-memory.dmp

Filesize
1.7MB

Download
memory/1284-21-0x0000000004EB0000-0x0000000004F75000-memory.dmp

Filesize
788KB

Download
memory/1284-19-0x0000000004EB0000-0x0000000004F75000-memory.dmp

Filesize
788KB

Download
memory/1284-18-0x0000000004EB0000-0x0000000004F75000-memory.dmp

Filesize
788KB

Download
memory/1284-13-0x00000000050F0000-0x000000000529F000-memory.dmp

Filesize
1.7MB

Download
memory/1620-9-0x0000000000050000-0x0000000000154000-memory.dmp

Filesize
1.0MB

Download
memory/1620-11-0x0000000000050000-0x0000000000154000-memory.dmp

Filesize
1.0MB

Download
memory/1620-12-0x0000000000190000-0x00000000001BF000-memory.dmp

Filesize
188KB

Download
memory/1680-2-0x0000000003380000-0x0000000003580000-memory.dmp

Filesize
2.0MB

Download
memory/2092-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2092-7-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/2092-4-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/2092-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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