formbook | c3bcad079783994c120fac56b70a9c97eb75aa54418c3b68fd1bba0d01455d67

General

Target

PFmJ9j7Ndg2NERo.exe
Size

644KB
MD5

82f8c097337d6303b9b600515237006b
SHA1

91baaee26748c313f01940a6da9248b05b52187c
SHA256

3ba65c5187bfaf51f020ce9e3f36fe8b4effd7b91c5f2b1ff46b245580ade156
SHA512

7da9392c1a6db5ad0728a566fb1cd7cb3aef38a8e496f7d9931e02ce0ea86e8cbc303a402aa4cf10d667e23be3be303fadf3cbe9ad068530c7b71af88e446f04
SSDEEP

12288:3DzJpZqhzZQ2+P5SNJFS5lWW9jkWsTSuNt0/PIViwt5XHU:PdqhzaTyJFi9j/UN+/Psiw5

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.online

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/2288-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2288-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2288-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2996-28-0x0000000000070000-0x000000000009F000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2644	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2136 set thread context of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2288 set thread context of 1216	2288	PFmJ9j7Ndg2NERo.exe	21
PID 2288 set thread context of 1216	2288	PFmJ9j7Ndg2NERo.exe	21
PID 2996 set thread context of 1216	2996	cscript.exe	21

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	PFmJ9j7Ndg2NERo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2136	PFmJ9j7Ndg2NERo.exe
2136	PFmJ9j7Ndg2NERo.exe
2288	PFmJ9j7Ndg2NERo.exe
2288	PFmJ9j7Ndg2NERo.exe
2288	PFmJ9j7Ndg2NERo.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe
2996	cscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2288	PFmJ9j7Ndg2NERo.exe
2288	PFmJ9j7Ndg2NERo.exe
2288	PFmJ9j7Ndg2NERo.exe
2288	PFmJ9j7Ndg2NERo.exe
2996	cscript.exe
2996	cscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	PFmJ9j7Ndg2NERo.exe
Token: SeDebugPrivilege	2288	PFmJ9j7Ndg2NERo.exe
Token: SeDebugPrivilege	2996	cscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 2136 wrote to memory of 2288	2136	PFmJ9j7Ndg2NERo.exe	28
PID 1216 wrote to memory of 2996	1216	Explorer.EXE	31
PID 1216 wrote to memory of 2996	1216	Explorer.EXE	31
PID 1216 wrote to memory of 2996	1216	Explorer.EXE	31
PID 1216 wrote to memory of 2996	1216	Explorer.EXE	31
PID 2996 wrote to memory of 2644	2996	cscript.exe	32
PID 2996 wrote to memory of 2644	2996	cscript.exe	32
PID 2996 wrote to memory of 2644	2996	cscript.exe	32
PID 2996 wrote to memory of 2644	2996	cscript.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\PFmJ9j7Ndg2NERo.exe
  "C:\Users\Admin\AppData\Local\Temp\PFmJ9j7Ndg2NERo.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Users\Admin\AppData\Local\Temp\PFmJ9j7Ndg2NERo.exe
    "C:\Users\Admin\AppData\Local\Temp\PFmJ9j7Ndg2NERo.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2288
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:2996
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PFmJ9j7Ndg2NERo.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1216-18-0x0000000004290000-0x00000000043A8000-memory.dmp

Filesize
1.1MB

Download
memory/1216-29-0x0000000004FC0000-0x0000000005132000-memory.dmp

Filesize
1.4MB

Download
memory/1216-24-0x0000000004290000-0x00000000043A8000-memory.dmp

Filesize
1.1MB

Download
memory/1216-23-0x0000000004FC0000-0x0000000005132000-memory.dmp

Filesize
1.4MB

Download
memory/2136-6-0x0000000001270000-0x00000000012E6000-memory.dmp

Filesize
472KB

Download
memory/2136-5-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/2136-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/2136-1-0x0000000001320000-0x00000000013C6000-memory.dmp

Filesize
664KB

Download
memory/2136-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/2136-3-0x0000000000640000-0x0000000000650000-memory.dmp

Filesize
64KB

Download
memory/2136-4-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/2136-12-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/2288-17-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/2288-13-0x0000000000850000-0x0000000000B53000-memory.dmp

Filesize
3.0MB

Download
memory/2288-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2288-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2288-21-0x0000000000360000-0x0000000000374000-memory.dmp

Filesize
80KB

Download
memory/2288-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2288-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2288-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2288-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2996-27-0x0000000000FC0000-0x0000000000FE2000-memory.dmp

Filesize
136KB

Download
memory/2996-25-0x0000000000FC0000-0x0000000000FE2000-memory.dmp

Filesize
136KB

Download
memory/2996-28-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download

Analysis

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