formbook | c0e855dd6adbc1c592518bf09966e6240217b8445b2521a6d189e20bfafdff16

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 01:44

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General

Target

NEW PO - 24101.exe
Size

1.1MB
MD5

2101224c25b008724832b22df4b2f33f
SHA1

1ab2163ad4933dfa6e9b7c9809bdd47f0d3f8ed1
SHA256

ed3c955db72dc944a905068be7dc2c7668c4de73be2c5efe3307b16e60e901a3
SHA512

c0d9f0a4294e06d25d7f94efe1ea82d4c98a2500abd1174d5979f97f8a0b01ac24a256d468b39609356a313521866942ba596012e34bc7f2b00dd7a8e6f77a3e
SSDEEP

24576:ffmMv6Ckr7Mny5QLP9dGCLj5+F3kJnwahiA1:f3v+7/5QLP9dDLj5Q0VXh31

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/2828-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2828-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1988-11-0x0000000000E30000-0x0000000000E5F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 912 set thread context of 2828	912	NEW PO - 24101.exe	84
PID 2828 set thread context of 3496	2828	svchost.exe	56
PID 1988 set thread context of 3496	1988	chkdsk.exe	56

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	NEW PO - 24101.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
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe
1988	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
912	NEW PO - 24101.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
1988	chkdsk.exe
1988	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	svchost.exe
Token: SeDebugPrivilege	1988	chkdsk.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 2828	912	NEW PO - 24101.exe	84
PID 912 wrote to memory of 2828	912	NEW PO - 24101.exe	84
PID 912 wrote to memory of 2828	912	NEW PO - 24101.exe	84
PID 912 wrote to memory of 2828	912	NEW PO - 24101.exe	84
PID 3496 wrote to memory of 1988	3496	Explorer.EXE	85
PID 3496 wrote to memory of 1988	3496	Explorer.EXE	85
PID 3496 wrote to memory of 1988	3496	Explorer.EXE	85
PID 1988 wrote to memory of 5100	1988	chkdsk.exe	86
PID 1988 wrote to memory of 5100	1988	chkdsk.exe	86
PID 1988 wrote to memory of 5100	1988	chkdsk.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Users\Admin\AppData\Local\Temp\NEW PO - 24101.exe
  "C:\Users\Admin\AppData\Local\Temp\NEW PO - 24101.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW PO - 24101.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2828
- 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:1988
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5100

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

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Downloads

memory/912-2-0x0000000004360000-0x0000000004760000-memory.dmp

Filesize
4.0MB

Download
memory/1988-9-0x00000000006F0000-0x00000000006FA000-memory.dmp

Filesize
40KB

Download
memory/1988-11-0x0000000000E30000-0x0000000000E5F000-memory.dmp

Filesize
188KB

Download
memory/1988-10-0x00000000006F0000-0x00000000006FA000-memory.dmp

Filesize
40KB

Download
memory/2828-7-0x0000000000BD0000-0x0000000000BE4000-memory.dmp

Filesize
80KB

Download
memory/2828-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2828-4-0x0000000001400000-0x000000000174A000-memory.dmp

Filesize
3.3MB

Download
memory/2828-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3496-8-0x0000000008870000-0x0000000008926000-memory.dmp

Filesize
728KB

Download
memory/3496-12-0x0000000008870000-0x0000000008926000-memory.dmp

Filesize
728KB

Download
memory/3496-16-0x0000000008DE0000-0x0000000008EF9000-memory.dmp

Filesize
1.1MB

Download
memory/3496-17-0x0000000008DE0000-0x0000000008EF9000-memory.dmp

Filesize
1.1MB

Download
memory/3496-19-0x0000000008DE0000-0x0000000008EF9000-memory.dmp

Filesize
1.1MB

Download