formbook | 4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549

Analysis

max time kernel
148s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2024 13:58

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General

Target

4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe
Size

1.1MB
MD5

77a9deeaccfa74b131ed760e8afd6bc6
SHA1

5e1a90008e1c40d8aa892b116476f39338b3b20d
SHA256

4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549
SHA512

5bb993cc88a71922c7a744d546864cc5d3ae1ccbf47ba4d2c5e47c573fc35f741af77da262b95f6484f2574f9b78bf4ebbec60a5c87b05bf3f017cf42f0d5e8b
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCz/DejIKALMVog+:7JZoQrbTFZY1iaCHjAS

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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2484-3-0x0000000000370000-0x000000000039F000-memory.dmp	formbook
behavioral2/memory/2484-7-0x0000000000370000-0x000000000039F000-memory.dmp	formbook
behavioral2/memory/2484-11-0x0000000000370000-0x000000000039F000-memory.dmp	formbook
behavioral2/memory/2108-18-0x00000000007D0000-0x00000000007FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4024 set thread context of 2484	4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe	86
PID 2484 set thread context of 3392	2484	svchost.exe	56
PID 2484 set thread context of 3392	2484	svchost.exe	56
PID 2108 set thread context of 3392	2108	netsh.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe
2108	netsh.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe
4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2108	netsh.exe
2108	netsh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	svchost.exe
Token: SeDebugPrivilege	2108	netsh.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3392	Explorer.EXE
3392	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3392	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 2484	4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe	86
PID 4024 wrote to memory of 2484	4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe	86
PID 4024 wrote to memory of 2484	4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe	86
PID 4024 wrote to memory of 2484	4024	4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe	86
PID 3392 wrote to memory of 2108	3392	Explorer.EXE	87
PID 3392 wrote to memory of 2108	3392	Explorer.EXE	87
PID 3392 wrote to memory of 2108	3392	Explorer.EXE	87
PID 2108 wrote to memory of 2908	2108	netsh.exe	88
PID 2108 wrote to memory of 2908	2108	netsh.exe	88
PID 2108 wrote to memory of 2908	2108	netsh.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Users\Admin\AppData\Local\Temp\4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe
  "C:\Users\Admin\AppData\Local\Temp\4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4024
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2484
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.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:2108
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2108-17-0x0000000000A40000-0x0000000000A5E000-memory.dmp

Filesize
120KB

Download
memory/2108-18-0x00000000007D0000-0x00000000007FF000-memory.dmp

Filesize
188KB

Download
memory/2108-15-0x0000000000A40000-0x0000000000A5E000-memory.dmp

Filesize
120KB

Download
memory/2484-7-0x0000000000370000-0x000000000039F000-memory.dmp

Filesize
188KB

Download
memory/2484-8-0x0000000001270000-0x0000000001284000-memory.dmp

Filesize
80KB

Download
memory/2484-3-0x0000000000370000-0x000000000039F000-memory.dmp

Filesize
188KB

Download
memory/2484-6-0x0000000000F00000-0x000000000124A000-memory.dmp

Filesize
3.3MB

Download
memory/2484-12-0x00000000012D0000-0x00000000012E4000-memory.dmp

Filesize
80KB

Download
memory/2484-11-0x0000000000370000-0x000000000039F000-memory.dmp

Filesize
188KB

Download
memory/3392-14-0x0000000008E40000-0x0000000008FA2000-memory.dmp

Filesize
1.4MB

Download
memory/3392-13-0x0000000009060000-0x000000000920F000-memory.dmp

Filesize
1.7MB

Download
memory/3392-9-0x0000000008E40000-0x0000000008FA2000-memory.dmp

Filesize
1.4MB

Download
memory/3392-19-0x0000000009060000-0x000000000920F000-memory.dmp

Filesize
1.7MB

Download
memory/3392-22-0x0000000003410000-0x00000000034E6000-memory.dmp

Filesize
856KB

Download
memory/3392-23-0x0000000003410000-0x00000000034E6000-memory.dmp

Filesize
856KB

Download
memory/3392-25-0x0000000003410000-0x00000000034E6000-memory.dmp

Filesize
856KB

Download
memory/4024-2-0x00000000042D0000-0x00000000046D0000-memory.dmp

Filesize
4.0MB

Download