formbook | 320aa8c92e7c70266b35c8a5fc38ed069d68e6e1403b3ce56bab93fbd349d890

General

Target

PO23000251.exe
Size

604KB
MD5

7151c1fc12551a189cf6760f2decb54b
SHA1

afff9a2b21ed9934691b71bd3b22f184690ec909
SHA256

320aa8c92e7c70266b35c8a5fc38ed069d68e6e1403b3ce56bab93fbd349d890
SHA512

bd13aa406ec36c4077a730ebe5947027638929874c2bb02cf72f267c7ed7877b309589613d45720bdc4afe68e54a17666f87c11ff719ccc519812224c5869d63
SSDEEP

12288:SczC2XO/ixYJPRtwS5xSeRvIMC6BjxB4KOvriMT3eftntB:e2XO/AcPRWQxFqM5BjIjTOVn

Score

10^/10

formbook cu29 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cu29

Decoy

qidr.shop

usinessaviationconsulting.net

68716329.xyz

nd-los.net

ealthironcladguarantee.shop

oftware-download-69354.bond

48372305.top

omeownershub.top

mall-chilli.top

ajakgoid.online

ire-changer-53482.bond

rugsrx.shop

oyang123.info

azino-forum-pro.online

817715.rest

layman.vip

eb777.club

ovatonica.net

urgaslotvip.website

inn-paaaa.buzz

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/2248-6-0x0000000004390000-0x00000000043BF000-memory.dmp	formbook
behavioral1/memory/2924-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2924-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1408-26-0x0000000000080000-0x00000000000AF000-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
2672	powershell.exe

Deletes itself 1 IoCs

pid	Process
1388	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2248 set thread context of 2924	2248	PO23000251.exe	32
PID 2924 set thread context of 1160	2924	PO23000251.exe	21
PID 2924 set thread context of 1160	2924	PO23000251.exe	21
PID 1408 set thread context of 1160	1408	systray.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 4 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	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO23000251.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2248	PO23000251.exe
2248	PO23000251.exe
2924	PO23000251.exe
2924	PO23000251.exe
2672	powershell.exe
2924	PO23000251.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe
1408	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2924	PO23000251.exe
2924	PO23000251.exe
2924	PO23000251.exe
2924	PO23000251.exe
1408	systray.exe
1408	systray.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	PO23000251.exe
Token: SeDebugPrivilege	2924	PO23000251.exe
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	1408	systray.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2672	2248	PO23000251.exe	30
PID 2248 wrote to memory of 2672	2248	PO23000251.exe	30
PID 2248 wrote to memory of 2672	2248	PO23000251.exe	30
PID 2248 wrote to memory of 2672	2248	PO23000251.exe	30
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 2248 wrote to memory of 2924	2248	PO23000251.exe	32
PID 1160 wrote to memory of 1408	1160	Explorer.EXE	33
PID 1160 wrote to memory of 1408	1160	Explorer.EXE	33
PID 1160 wrote to memory of 1408	1160	Explorer.EXE	33
PID 1160 wrote to memory of 1408	1160	Explorer.EXE	33
PID 1408 wrote to memory of 1388	1408	systray.exe	34
PID 1408 wrote to memory of 1388	1408	systray.exe	34
PID 1408 wrote to memory of 1388	1408	systray.exe	34
PID 1408 wrote to memory of 1388	1408	systray.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Users\Admin\AppData\Local\Temp\PO23000251.exe
  "C:\Users\Admin\AppData\Local\Temp\PO23000251.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2248
- - 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\PO23000251.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2672
- - C:\Users\Admin\AppData\Local\Temp\PO23000251.exe
    "C:\Users\Admin\AppData\Local\Temp\PO23000251.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2924
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:1408
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO23000251.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1388

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/1160-19-0x00000000051C0000-0x000000000536F000-memory.dmp

Filesize
1.7MB

Download
memory/1408-26-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1408-25-0x0000000000EB0000-0x0000000000EB5000-memory.dmp

Filesize
20KB

Download
memory/2248-1-0x0000000000030000-0x00000000000CA000-memory.dmp

Filesize
616KB

Download
memory/2248-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-3-0x0000000001D90000-0x0000000001DA2000-memory.dmp

Filesize
72KB

Download
memory/2248-4-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-5-0x0000000005C50000-0x0000000005CC6000-memory.dmp

Filesize
472KB

Download
memory/2248-6-0x0000000004390000-0x00000000043BF000-memory.dmp

Filesize
188KB

Download
memory/2248-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2248-14-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2924-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2924-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2924-16-0x0000000000820000-0x0000000000B23000-memory.dmp

Filesize
3.0MB

Download
memory/2924-18-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/2924-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2924-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2924-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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