formbook | 4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545

General

Target

4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
Size

1.4MB
MD5

47b4b12ff498d2620dd824b86ba20e98
SHA1

c563ff933dd402ed4734c5f2030bf0bc8afd46c6
SHA256

4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545
SHA512

e19bf614de75c3b858726422817344a1ebc920b6daa9a8daec9fbef43e47a1ea218999473ab0ff53beead5a093e29a277d04a8cf2f811d38ad9b966d77212dce
SSDEEP

24576:eqDEvCTbMWu7rQYlBQcBiT6rprG8a74mPIiJZ+6/x7me8bQVe:eTvC/MTQYxsWR7a72mM6J7mp8

Score

10^/10

formbook hwu6 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hwu6

Decoy

lf758.vip

locerin-hair.shop

vytech.net

pet-insurance-intl-7990489.live

thepolithat.buzz

d66dr114gl.bond

suv-deals-49508.bond

job-offer-53922.bond

drstone1.click

lebahsemesta57.click

olmanihousel.shop

piedmontcsb.info

trisula888x.top

66sodovna.net

dental-implants-83810.bond

imxtld.club

frozenpines.net

ffgzgbl.xyz

tlc7z.rest

alexismuller.design

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2496-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2496-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2496-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2140-19-0x0000000000100000-0x000000000012F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2988 set thread context of 2496	2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe	31
PID 2496 set thread context of 1144	2496	svchost.exe	20
PID 2496 set thread context of 1144	2496	svchost.exe	20
PID 2140 set thread context of 1144	2140	rundll32.exe	20

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	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2496	svchost.exe
2496	svchost.exe
2496	svchost.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe
2140	rundll32.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
2496	svchost.exe
2496	svchost.exe
2496	svchost.exe
2496	svchost.exe
2140	rundll32.exe
2140	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	svchost.exe
Token: SeDebugPrivilege	2140	rundll32.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
1144	Explorer.EXE
1144	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2496	2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe	31
PID 2988 wrote to memory of 2496	2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe	31
PID 2988 wrote to memory of 2496	2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe	31
PID 2988 wrote to memory of 2496	2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe	31
PID 2988 wrote to memory of 2496	2988	4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe	31
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 1144 wrote to memory of 2140	1144	Explorer.EXE	32
PID 2140 wrote to memory of 2708	2140	rundll32.exe	33
PID 2140 wrote to memory of 2708	2140	rundll32.exe	33
PID 2140 wrote to memory of 2708	2140	rundll32.exe	33
PID 2140 wrote to memory of 2708	2140	rundll32.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Users\Admin\AppData\Local\Temp\4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe
  "C:\Users\Admin\AppData\Local\Temp\4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.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:2988
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2496
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:2140
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2708

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/1144-13-0x0000000005210000-0x00000000053B1000-memory.dmp

Filesize
1.6MB

Download
memory/1144-28-0x0000000004E60000-0x0000000004F15000-memory.dmp

Filesize
724KB

Download
memory/1144-27-0x0000000004E60000-0x0000000004F15000-memory.dmp

Filesize
724KB

Download
memory/1144-6-0x0000000003250000-0x0000000003350000-memory.dmp

Filesize
1024KB

Download
memory/1144-9-0x0000000005000000-0x0000000005157000-memory.dmp

Filesize
1.3MB

Download
memory/1144-25-0x0000000004E60000-0x0000000004F15000-memory.dmp

Filesize
724KB

Download
memory/1144-20-0x0000000005210000-0x00000000053B1000-memory.dmp

Filesize
1.6MB

Download
memory/1144-14-0x0000000005000000-0x0000000005157000-memory.dmp

Filesize
1.3MB

Download
memory/2140-18-0x0000000000050000-0x000000000005E000-memory.dmp

Filesize
56KB

Download
memory/2140-15-0x0000000000050000-0x000000000005E000-memory.dmp

Filesize
56KB

Download
memory/2140-16-0x0000000000050000-0x000000000005E000-memory.dmp

Filesize
56KB

Download
memory/2140-19-0x0000000000100000-0x000000000012F000-memory.dmp

Filesize
188KB

Download
memory/2496-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2496-12-0x00000000002A0000-0x00000000002B4000-memory.dmp

Filesize
80KB

Download
memory/2496-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2496-8-0x0000000000160000-0x0000000000174000-memory.dmp

Filesize
80KB

Download
memory/2496-4-0x0000000000740000-0x0000000000A43000-memory.dmp

Filesize
3.0MB

Download
memory/2496-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2988-2-0x0000000000B00000-0x0000000000F00000-memory.dmp

Filesize
4.0MB

Download

Analysis

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