formbook | 3c321f4c7feb1233711409ad1fc9371732c24a302d3e5b9cd5e238ab1a638288

Analysis

max time kernel
148s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 15:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

20240929162138.exe
Size

1.1MB
MD5

98e9de2d6078c01e65d3f41ab1edb255
SHA1

b48af26ed35457a945ea8283b5ac3e53d626a26e
SHA256

3c321f4c7feb1233711409ad1fc9371732c24a302d3e5b9cd5e238ab1a638288
SHA512

99c003bdcd15576f4a686d4a945b2993f426ff95858409cf3afdf005a0e39850cd1db955445ec8a2ba394bfdde0b3a9682161edf6fb68752db815f473903d8d0
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCc3cPGY9obOhDzA1iu/RZxUkx:7JZoQrbTFZY1iaCkzbOhuNRZqkx

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
behavioral2/memory/4464-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4464-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1064-11-0x0000000000CA0000-0x0000000000CCF000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4700-2-0x00000000043B0000-0x00000000047B0000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4700 set thread context of 4464	4700	20240929162138.exe	82
PID 4464 set thread context of 3420	4464	svchost.exe	55
PID 1064 set thread context of 3420	1064	chkdsk.exe	55

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	20240929162138.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 62 IoCs

pid	Process
4464	svchost.exe
4464	svchost.exe
4464	svchost.exe
4464	svchost.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe
1064	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4700	20240929162138.exe
4464	svchost.exe
4464	svchost.exe
4464	svchost.exe
1064	chkdsk.exe
1064	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	svchost.exe
Token: SeDebugPrivilege	1064	chkdsk.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 4464	4700	20240929162138.exe	82
PID 4700 wrote to memory of 4464	4700	20240929162138.exe	82
PID 4700 wrote to memory of 4464	4700	20240929162138.exe	82
PID 4700 wrote to memory of 4464	4700	20240929162138.exe	82
PID 3420 wrote to memory of 1064	3420	Explorer.EXE	83
PID 3420 wrote to memory of 1064	3420	Explorer.EXE	83
PID 3420 wrote to memory of 1064	3420	Explorer.EXE	83
PID 1064 wrote to memory of 1156	1064	chkdsk.exe	88
PID 1064 wrote to memory of 1156	1064	chkdsk.exe	88
PID 1064 wrote to memory of 1156	1064	chkdsk.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\20240929162138.exe
  "C:\Users\Admin\AppData\Local\Temp\20240929162138.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4700
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\20240929162138.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4464
- 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:1064
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1064-9-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/1064-11-0x0000000000CA0000-0x0000000000CCF000-memory.dmp

Filesize
188KB

Download
memory/1064-10-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/3420-12-0x0000000002C60000-0x0000000002D24000-memory.dmp

Filesize
784KB

Download
memory/3420-8-0x0000000002C60000-0x0000000002D24000-memory.dmp

Filesize
784KB

Download
memory/3420-16-0x0000000008400000-0x0000000008576000-memory.dmp

Filesize
1.5MB

Download
memory/3420-17-0x0000000008400000-0x0000000008576000-memory.dmp

Filesize
1.5MB

Download
memory/3420-19-0x0000000008400000-0x0000000008576000-memory.dmp

Filesize
1.5MB

Download
memory/4464-7-0x0000000001960000-0x0000000001974000-memory.dmp

Filesize
80KB

Download
memory/4464-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4464-4-0x0000000001500000-0x000000000184A000-memory.dmp

Filesize
3.3MB

Download
memory/4464-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4700-2-0x00000000043B0000-0x00000000047B0000-memory.dmp

Filesize
4.0MB

Download