formbook | 1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9

General

Target

1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe
Size

1.0MB
MD5

a705beae89687fe840600d21503ccabe
SHA1

1b3395647588b26f15a180701be18c4c4fcd444c
SHA256

1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9
SHA512

26d9be72899732a252b85683efe58036e4629dfb01c9e73a65a9b89deb75ccb26d4ce124fbb4a30d2ff0df790678d0c1182e33e33c0a56117e386292a1fed247
SSDEEP

24576:DRmJkcoQricOIQxiZY1iaKrNoupU7RjFmFqrNJ:wJZoQrbTFZY1iaKm9QcpJ

Score

10^/10

formbook cs64 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cs64

Decoy

dc02.top

ogelsumopisang.space

hecrazycowrestaurant.online

roneclipse.shop

ijtjs.top

ius.top

stekhare.app

vway.online

ats.social

lavlyxe.info

raphic-design-degree-35680.bond

avrd.shop

egastudyacademy.net

3home.store

afe-naver0m.pro

ortartechnologies.site

23tictactoe.com

card.monster

etafzco.net

outpetit.shop

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2208-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2208-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2336-14-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exesvchost.exerundll32.exe

description	pid	Process	procid_target
PID 2384 set thread context of 2208	2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe	30
PID 2208 set thread context of 1212	2208	svchost.exe	21
PID 2336 set thread context of 1212	2336	rundll32.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 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:

1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exerundll32.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.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

Processes:

svchost.exerundll32.exe

pid	Process
2208	svchost.exe
2208	svchost.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exesvchost.exerundll32.exe

pid	Process
2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe
2208	svchost.exe
2208	svchost.exe
2208	svchost.exe
2336	rundll32.exe
2336	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exerundll32.exe

description	pid	Process
Token: SeDebugPrivilege	2208	svchost.exe
Token: SeDebugPrivilege	2336	rundll32.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exeExplorer.EXErundll32.exe

description	pid	Process	procid_target
PID 2384 wrote to memory of 2208	2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe	30
PID 2384 wrote to memory of 2208	2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe	30
PID 2384 wrote to memory of 2208	2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe	30
PID 2384 wrote to memory of 2208	2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe	30
PID 2384 wrote to memory of 2208	2384	1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe	30
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2336	1212	Explorer.EXE	31
PID 2336 wrote to memory of 2800	2336	rundll32.exe	32
PID 2336 wrote to memory of 2800	2336	rundll32.exe	32
PID 2336 wrote to memory of 2800	2336	rundll32.exe	32
PID 2336 wrote to memory of 2800	2336	rundll32.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe
  "C:\Users\Admin\AppData\Local\Temp\1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\1a635d43f1ea2b5506eaf73b1783847d16f51646054cd8bb92bcf82eb3b4aae9.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2208
- 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:2336
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

memory/1212-8-0x00000000045B0000-0x0000000004680000-memory.dmp

Filesize
832KB

Download
memory/1212-15-0x00000000045B0000-0x0000000004680000-memory.dmp

Filesize
832KB

Download
memory/2208-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2208-4-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/2208-7-0x0000000000290000-0x00000000002A5000-memory.dmp

Filesize
84KB

Download
memory/2208-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2336-9-0x00000000001B0000-0x00000000001BE000-memory.dmp

Filesize
56KB

Download
memory/2336-10-0x00000000001B0000-0x00000000001BE000-memory.dmp

Filesize
56KB

Download
memory/2336-13-0x00000000001B0000-0x00000000001BE000-memory.dmp

Filesize
56KB

Download
memory/2336-14-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2384-2-0x0000000002E30000-0x0000000003030000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads