formbook | ffaa78a8a97885716e7dbe2a4a7ed9e1593ea5690f02f79f5d63c9b4964559da

General

Target

RFQ 245801.exe
Size

697KB
MD5

4be29153bc863fa6d2914aab9759e6aa
SHA1

eb30dab7d18b7bbf2673573cc96da82f6374d85b
SHA256

ffaa78a8a97885716e7dbe2a4a7ed9e1593ea5690f02f79f5d63c9b4964559da
SHA512

f3b861ecec9500c4ef20a4750c78b7505d42be16a9bfc3473fd8270720409a7a331af4d423f7bffc3065873a654a23370ebc229ecbfad591dae5dbf2239a9e29
SSDEEP

12288:P1A+f0e7eDuu9f8ZYDrQ1I6030Ro1JPCnW3tQsBRwdFKPQhilBr4E1Pm6/cOkR:Prx4rb30RovKW3rReFSQIv1Q6/u

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/2904-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2904-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2468-23-0x0000000000080000-0x00000000000AF000-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
2596	powershell.exe

Deletes itself 1 IoCs

pid	Process
1524	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2904	2708	RFQ 245801.exe	32
PID 2904 set thread context of 1192	2904	RFQ 245801.exe	21
PID 2468 set thread context of 1192	2468	NAPSTAT.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	RFQ 245801.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2708	RFQ 245801.exe
2708	RFQ 245801.exe
2904	RFQ 245801.exe
2904	RFQ 245801.exe
2596	powershell.exe
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2904	RFQ 245801.exe
2904	RFQ 245801.exe
2904	RFQ 245801.exe
2468	NAPSTAT.EXE
2468	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	RFQ 245801.exe
Token: SeDebugPrivilege	2904	RFQ 245801.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	2468	NAPSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2596	2708	RFQ 245801.exe	30
PID 2708 wrote to memory of 2596	2708	RFQ 245801.exe	30
PID 2708 wrote to memory of 2596	2708	RFQ 245801.exe	30
PID 2708 wrote to memory of 2596	2708	RFQ 245801.exe	30
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 2708 wrote to memory of 2904	2708	RFQ 245801.exe	32
PID 1192 wrote to memory of 2468	1192	Explorer.EXE	33
PID 1192 wrote to memory of 2468	1192	Explorer.EXE	33
PID 1192 wrote to memory of 2468	1192	Explorer.EXE	33
PID 1192 wrote to memory of 2468	1192	Explorer.EXE	33
PID 2468 wrote to memory of 1524	2468	NAPSTAT.EXE	34
PID 2468 wrote to memory of 1524	2468	NAPSTAT.EXE	34
PID 2468 wrote to memory of 1524	2468	NAPSTAT.EXE	34
PID 2468 wrote to memory of 1524	2468	NAPSTAT.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\RFQ 245801.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ 245801.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2708
- - 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 245801.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2596
- - C:\Users\Admin\AppData\Local\Temp\RFQ 245801.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ 245801.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2904
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.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:2468
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ 245801.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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/1192-27-0x0000000006400000-0x0000000006511000-memory.dmp

Filesize
1.1MB

Download
memory/2468-21-0x0000000000C80000-0x0000000000CC6000-memory.dmp

Filesize
280KB

Download
memory/2468-23-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2708-15-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2708-0-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/2708-5-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/2708-6-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2708-7-0x0000000005260000-0x00000000052D6000-memory.dmp

Filesize
472KB

Download
memory/2708-1-0x0000000000D30000-0x0000000000DE2000-memory.dmp

Filesize
712KB

Download
memory/2708-2-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2708-4-0x00000000003C0000-0x00000000003D8000-memory.dmp

Filesize
96KB

Download
memory/2708-3-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2904-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2904-18-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/2904-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2904-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2904-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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