formbook | ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be

General

Target

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
Size

636KB
MD5

946ddca6df1a4ad1bab2b6166dbd516d
SHA1

7362693e6ac7990c7456a47c09a1e7463d855e26
SHA256

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be
SHA512

b8ebaa3b5aca238c4e7a4e2486b3d017d044fab1a3eb9e65c3e032751386909117b74a9e48bd5f7969c1fc39c5301d623617ca8d128a8e702163878dc738a43d
SSDEEP

12288:DzaDPw1Qk89Tmyx6Dz1Xy6ICOHdhWMTqJFl/UYp1pinxVy/56:DWLw9gTFg3MYsdhM1cYp1piw56

Score

10^/10

formbook dn13 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn13

Decoy

5q53s.top

f9813.top

ysticsmoke.net

ignorysingeysquints.cfd

yncsignature.live

svp-their.xyz

outya.xyz

wlkflwef3sf2wf.top

etterjugfetkaril.cfd

p9eh2s99b5.top

400108iqlnnqi219.top

ynsu-condition.xyz

ndividual-bfiaen.xyz

anceibizamagazine.net

itrussips.live

orkcubefood.xyz

lindsandfurnishings.shop

ajwmid.top

pigramescentfeatous.shop

mbvcv56789.click

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

Processes:

resource	yara_rule
behavioral1/memory/2592-17-0x0000000000400000-0x000000000042F000-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

Processes:

powershell.exe

pid	Process
2420	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe

description	pid	Process	procid_target
PID 1744 set thread context of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.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

Processes:

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exepowershell.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.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

Processes:

schtasks.exe

pid	Process
2072	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exeec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exepowershell.exe

pid	Process
1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
2592	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
2420	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
Token: SeDebugPrivilege	2420	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe

description	pid	Process	procid_target
PID 1744 wrote to memory of 2420	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	30
PID 1744 wrote to memory of 2420	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	30
PID 1744 wrote to memory of 2420	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	30
PID 1744 wrote to memory of 2420	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	30
PID 1744 wrote to memory of 2072	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	31
PID 1744 wrote to memory of 2072	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	31
PID 1744 wrote to memory of 2072	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	31
PID 1744 wrote to memory of 2072	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	31
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34
PID 1744 wrote to memory of 2592	1744	ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe	34

C:\Users\Admin\AppData\Local\Temp\ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
"C:\Users\Admin\AppData\Local\Temp\ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZXTRzzwt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2420
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZXTRzzwt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCEA5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2072
- C:\Users\Admin\AppData\Local\Temp\ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe
  "C:\Users\Admin\AppData\Local\Temp\ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2592

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\tmpCEA5.tmp

Filesize
1KB

MD5
67d4e93b746621b8d64a5e14bd750006

SHA1
10f083e8e28a2b5160128d7ce7428b595265f87b

SHA256
0f78cdc975ea29701695469e603295b6fcd1010904afc438240f3190a9d7e3ab

SHA512
1d300549f8227e9be75f9dde60cb1bef0aa52486d670c08e6d69ad11d7d83f2c80c80ce02bd36e984ed8e44dcd545dccdef7b9725d0c4b82ca5c548ec28e3286

Download Submit
memory/1744-6-0x00000000003D0000-0x0000000000446000-memory.dmp

Filesize
472KB

Download
memory/1744-2-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-3-0x0000000000650000-0x000000000066E000-memory.dmp

Filesize
120KB

Download
memory/1744-4-0x000000007429E000-0x000000007429F000-memory.dmp

Filesize
4KB

Download
memory/1744-5-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-0-0x000000007429E000-0x000000007429F000-memory.dmp

Filesize
4KB

Download
memory/1744-1-0x0000000000DC0000-0x0000000000E66000-memory.dmp

Filesize
664KB

Download
memory/1744-18-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2592-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2592-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads