formbook | 9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35

General

Target

9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe
Size

1.1MB
MD5

8b22b618c1532585a65a3cfe829018ab
SHA1

1c86d17a59b3630829d579a5b7f2d365c0081a6a
SHA256

9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35
SHA512

cf2cdfcbeb20a63ca1c08cccb9ca154a0854b5835a41b206285feebe3a0bbbea52c0e604d1c4fec1219bfcbe3add48abbb6e228866416085bd04a84e59e813d7
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCTb1lxlb5qUf48Gu4zEBr1+OZ:7JZoQrbTFZY1iaC7n5RvZJ+4

Score

10^/10

formbook c24t discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

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/2716-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2716-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2720-12-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1964 set thread context of 2716	1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe	30
PID 2716 set thread context of 1268	2716	svchost.exe	21
PID 2720 set thread context of 1268	2720	chkdsk.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2716	svchost.exe
2716	svchost.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2720	chkdsk.exe
2720	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	svchost.exe
Token: SeDebugPrivilege	2720	chkdsk.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2716	1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe	30
PID 1964 wrote to memory of 2716	1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe	30
PID 1964 wrote to memory of 2716	1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe	30
PID 1964 wrote to memory of 2716	1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe	30
PID 1964 wrote to memory of 2716	1964	9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe	30
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	31
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	31
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	31
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	31
PID 2720 wrote to memory of 2528	2720	chkdsk.exe	32
PID 2720 wrote to memory of 2528	2720	chkdsk.exe	32
PID 2720 wrote to memory of 2528	2720	chkdsk.exe	32
PID 2720 wrote to memory of 2528	2720	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe
  "C:\Users\Admin\AppData\Local\Temp\9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2716
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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/1268-8-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/1268-9-0x0000000007430000-0x000000000757E000-memory.dmp

Filesize
1.3MB

Download
memory/1268-13-0x0000000007430000-0x000000000757E000-memory.dmp

Filesize
1.3MB

Download
memory/1964-2-0x0000000003D80000-0x0000000004180000-memory.dmp

Filesize
4.0MB

Download
memory/2716-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2716-4-0x00000000006E0000-0x00000000009E3000-memory.dmp

Filesize
3.0MB

Download
memory/2716-7-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/2716-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2720-11-0x0000000000390000-0x0000000000397000-memory.dmp

Filesize
28KB

Download
memory/2720-10-0x0000000000390000-0x0000000000397000-memory.dmp

Filesize
28KB

Download
memory/2720-12-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download

Analysis

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