formbook | 6dc1bba66cba9a4ee7a5156375e1935bd30c6b1022bea4082fb3714ce5c73e07

General

Target

RFQ-1024.exe
Size

588KB
MD5

3429170427053d7d39dc81b889d0097e
SHA1

8631c8767beda82b2b14f2de215d745e512f3ea2
SHA256

6dc1bba66cba9a4ee7a5156375e1935bd30c6b1022bea4082fb3714ce5c73e07
SHA512

8c73ee16f331104895c338476146053b488a7695bcefbf9dea44385ba671ed31be065a03c30ae79a8118e02668f6a0fcaae5bf06d476c92156f0c4c6a4af2d6b
SSDEEP

12288:pBtLYydPGLVH+xV4QL/ywRMufCXgnWusDYdhjB5gjYsSOBddtTJzkR:pBRFtGJ+xVbLvRM3XOWusDeNOjYs0

Score

10^/10

formbook c24t discovery execution 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/2608-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2608-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2544-20-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2180	powershell.exe

Deletes itself 1 IoCs

pid	Process
2128	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2608	2724	RFQ-1024.exe	32
PID 2608 set thread context of 1228	2608	RFQ-1024.exe	21
PID 2544 set thread context of 1228	2544	ipconfig.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 4 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ-1024.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2544	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2724	RFQ-1024.exe
2724	RFQ-1024.exe
2608	RFQ-1024.exe
2608	RFQ-1024.exe
2180	powershell.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe
2544	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2608	RFQ-1024.exe
2608	RFQ-1024.exe
2608	RFQ-1024.exe
2544	ipconfig.exe
2544	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	RFQ-1024.exe
Token: SeDebugPrivilege	2608	RFQ-1024.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeDebugPrivilege	2544	ipconfig.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 2180	2724	RFQ-1024.exe	30
PID 2724 wrote to memory of 2180	2724	RFQ-1024.exe	30
PID 2724 wrote to memory of 2180	2724	RFQ-1024.exe	30
PID 2724 wrote to memory of 2180	2724	RFQ-1024.exe	30
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 2724 wrote to memory of 2608	2724	RFQ-1024.exe	32
PID 1228 wrote to memory of 2544	1228	Explorer.EXE	33
PID 1228 wrote to memory of 2544	1228	Explorer.EXE	33
PID 1228 wrote to memory of 2544	1228	Explorer.EXE	33
PID 1228 wrote to memory of 2544	1228	Explorer.EXE	33
PID 2544 wrote to memory of 2128	2544	ipconfig.exe	34
PID 2544 wrote to memory of 2128	2544	ipconfig.exe	34
PID 2544 wrote to memory of 2128	2544	ipconfig.exe	34
PID 2544 wrote to memory of 2128	2544	ipconfig.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\RFQ-1024.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ-1024.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ-1024.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2180
- - C:\Users\Admin\AppData\Local\Temp\RFQ-1024.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ-1024.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2608
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ-1024.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1228-17-0x0000000000350000-0x0000000000450000-memory.dmp

Filesize
1024KB

Download
memory/2544-20-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2544-19-0x0000000000AB0000-0x0000000000ABA000-memory.dmp

Filesize
40KB

Download
memory/2608-15-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/2608-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-6-0x0000000004E00000-0x0000000004E76000-memory.dmp

Filesize
472KB

Download
memory/2724-4-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2724-12-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2724-3-0x00000000006B0000-0x00000000006C0000-memory.dmp

Filesize
64KB

Download
memory/2724-5-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-2-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-1-0x0000000000240000-0x00000000002D6000-memory.dmp

Filesize
600KB

Download

Analysis

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