formbook | a462535dd4c7d80f9b474eb2a67117563a9fcc8d73fc0592b7753fdf4191f758

General

Target

DREADDD.exe
Size

844KB
MD5

ba889042212f5499eaac3dc6ed5862df
SHA1

e676da915aa8c038ed9262fd43b2282fc59d96fd
SHA256

ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9
SHA512

136d5ad1cd9692d95cc394d323dbf81be465b0edb776a467173b29ead39c820ca4ebf7e23786c7d0cd49808ce3b8f9bb94f08f5a31eaedf437f3ae67fc769021
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QL+DgSv8+gOoyem:ffmMv6Ckr7Mny5QL+DY9m

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.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

resource	yara_rule
behavioral1/memory/2092-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2092-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2092-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 2092	2688	DREADDD.exe	30
PID 2092 set thread context of 1112	2092	svchost.exe	20
PID 2092 set thread context of 1112	2092	svchost.exe	20

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2808	1540	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	DREADDD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2092	svchost.exe
2092	svchost.exe
2092	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2688	DREADDD.exe
2092	svchost.exe
2092	svchost.exe
2092	svchost.exe
2092	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	svchost.exe
Token: SeShutdownPrivilege	1112	Explorer.EXE
Token: SeShutdownPrivilege	1112	Explorer.EXE
Token: SeShutdownPrivilege	1112	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2688	DREADDD.exe
2688	DREADDD.exe
1112	Explorer.EXE
1112	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2688	DREADDD.exe
2688	DREADDD.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2092	2688	DREADDD.exe	30
PID 2688 wrote to memory of 2092	2688	DREADDD.exe	30
PID 2688 wrote to memory of 2092	2688	DREADDD.exe	30
PID 2688 wrote to memory of 2092	2688	DREADDD.exe	30
PID 2688 wrote to memory of 2092	2688	DREADDD.exe	30
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1112 wrote to memory of 1540	1112	Explorer.EXE	31
PID 1540 wrote to memory of 2808	1540	msiexec.exe	32
PID 1540 wrote to memory of 2808	1540	msiexec.exe	32
PID 1540 wrote to memory of 2808	1540	msiexec.exe	32
PID 1540 wrote to memory of 2808	1540	msiexec.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\DREADDD.exe
  "C:\Users\Admin\AppData\Local\Temp\DREADDD.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:2688
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\DREADDD.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2092
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 268
    3⤵
    - Program crash
    PID:2808

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

Replay Monitor

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Downloads

memory/1112-16-0x0000000006DD0000-0x0000000006F44000-memory.dmp

Filesize
1.5MB

Download
memory/1112-11-0x0000000006680000-0x0000000006806000-memory.dmp

Filesize
1.5MB

Download
memory/1112-23-0x0000000006DD0000-0x0000000006F44000-memory.dmp

Filesize
1.5MB

Download
memory/1112-15-0x0000000006680000-0x0000000006806000-memory.dmp

Filesize
1.5MB

Download
memory/1540-17-0x00000000006F0000-0x0000000000704000-memory.dmp

Filesize
80KB

Download
memory/1540-20-0x00000000006F0000-0x0000000000704000-memory.dmp

Filesize
80KB

Download
memory/1540-18-0x00000000006F0000-0x0000000000704000-memory.dmp

Filesize
80KB

Download
memory/2092-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2092-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2092-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2092-10-0x0000000000210000-0x0000000000224000-memory.dmp

Filesize
80KB

Download
memory/2092-14-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/2092-7-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/2688-5-0x0000000000270000-0x0000000000274000-memory.dmp

Filesize
16KB

Download

Analysis

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