formbook | 76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd

General

Target

COM404 PDF.exe
Size

716KB
MD5

93aa3f69e562e84221fdbf092b598695
SHA1

0dc82fcad56dab3c424772c2f662397e6377680d
SHA256

76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd
SHA512

50a16971bf86412754d79f65a7088bb2f4a094e7bc3315326308dfb25636b88aba73cbe78ed3fe5a999257cf017f952f2edd9699e329e95e0b9eb37dea8694f3
SSDEEP

12288:V7VVkSNxIjd1l3K7vyPQ5v7PLygpyjknwjPof7GmdSQsQw6kOIMishwK:VkAxIHl3KOk7zygkvQf7GmdVwrO3z

Score

10^/10

formbook he2a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

he2a

Decoy

070001606.xyz

jesuseascriancas.online

as-eltransport.xyz

bankditalia-company.online

linkedin-stijngraat.online

sportsbetd.xyz

spanish-classes-76893.bond

infonation.pro

nxwzbze.forum

rush-pay.biz

fulfillmissions.lat

infolungcancer.xyz

aqario.xyz

omepro.solar

jackmanmueshl.shop

amcart.store

ishanaudichya.xyz

sun4rk.shop

depression-test-74287.bond

chipit.shop

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2308-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2308-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2424-22-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2820	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2488 set thread context of 2308	2488	COM404 PDF.exe	30
PID 2308 set thread context of 1196	2308	COM404 PDF.exe	21
PID 2424 set thread context of 1196	2424	cmstp.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	COM404 PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2308	COM404 PDF.exe
2308	COM404 PDF.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe
2424	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2308	COM404 PDF.exe
2308	COM404 PDF.exe
2308	COM404 PDF.exe
2424	cmstp.exe
2424	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	COM404 PDF.exe
Token: SeDebugPrivilege	2424	cmstp.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 2488 wrote to memory of 2308	2488	COM404 PDF.exe	30
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2424	1196	Explorer.EXE	33
PID 2424 wrote to memory of 2820	2424	cmstp.exe	35
PID 2424 wrote to memory of 2820	2424	cmstp.exe	35
PID 2424 wrote to memory of 2820	2424	cmstp.exe	35
PID 2424 wrote to memory of 2820	2424	cmstp.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\COM404 PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\COM404 PDF.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2488
- - C:\Users\Admin\AppData\Local\Temp\COM404 PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\COM404 PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2308
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:3056
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2896
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2424
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\COM404 PDF.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2820

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/1196-18-0x0000000006560000-0x0000000006700000-memory.dmp

Filesize
1.6MB

Download
memory/1196-23-0x0000000006560000-0x0000000006700000-memory.dmp

Filesize
1.6MB

Download
memory/2308-16-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/2308-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2308-15-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/2308-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2308-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2308-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2308-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2424-19-0x0000000000B70000-0x0000000000B88000-memory.dmp

Filesize
96KB

Download
memory/2424-21-0x0000000000B70000-0x0000000000B88000-memory.dmp

Filesize
96KB

Download
memory/2424-22-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2488-5-0x00000000052D0000-0x0000000005346000-memory.dmp

Filesize
472KB

Download
memory/2488-13-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-3-0x0000000000810000-0x0000000000828000-memory.dmp

Filesize
96KB

Download
memory/2488-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/2488-4-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-2-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-1-0x0000000000940000-0x00000000009F8000-memory.dmp

Filesize
736KB

Download

Analysis

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