formbook | 2b5f20bf3830cdd36406a5b805a1c21a2df77d7fe5b5f0a80a3f97e5dc9756df

General

Target

IRQ2107798_pdf.exe
Size

680KB
MD5

82bd4c01ebb56d4e838dafea4ca369a6
SHA1

da828300ae92f1ff46256ee8083d1b11a5f1e352
SHA256

e0c7519f48b2a37fca3ee1407808121685915fb1243a1ba217ea1663f9119ffd
SHA512

cb9dac5456d02890952eb28efd4717520bd60c8a171dd34a1cae30dd6fa55e3afecc41e84de54fa5ec377b16866021d5eb4a33478c8498f77898fa306e2e06a4
SSDEEP

12288:6rXpUSlB61512158AahA4wk3/ZnxMTjDdiWA9izA4pBqXodAtOlazgTSFcDXQ:sXpUSlB6151215H4A58RnxMTXNqXoUPQ

Score

10^/10

formbook sn03 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn03

Decoy

bridgenorman.com

basketexpo.email

melayuxxx.site

teckhockng.com

artisanvillage.life

web3booster.xyz

avxoco.com

magicgene.xyz

jasondeng.space

beh2owxwsm4j.xyz

modabet608.com

biscottiplans.com

forestaquatics.com

remonte-moebel-planung.com

wycosau389.xyz

srsea.xyz

we-vegotwhatyouwant.com

jc3jw80xfifi.xyz

msdigitalwesite.digital

chairbornegsi.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2632-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2632-28-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3024-31-0x0000000000080000-0x00000000000AF000-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
2936	powershell.exe

Deletes itself 1 IoCs

pid	Process
2984	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1204 set thread context of 2632	1204	IRQ2107798_pdf.exe	35
PID 2632 set thread context of 1192	2632	IRQ2107798_pdf.exe	21
PID 2632 set thread context of 1192	2632	IRQ2107798_pdf.exe	21
PID 3024 set thread context of 1192	3024	help.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 5 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	IRQ2107798_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2216	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2632	IRQ2107798_pdf.exe
2632	IRQ2107798_pdf.exe
2936	powershell.exe
2632	IRQ2107798_pdf.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe
3024	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2632	IRQ2107798_pdf.exe
2632	IRQ2107798_pdf.exe
2632	IRQ2107798_pdf.exe
2632	IRQ2107798_pdf.exe
3024	help.exe
3024	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	IRQ2107798_pdf.exe
Token: SeDebugPrivilege	2936	powershell.exe
Token: SeDebugPrivilege	3024	help.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 2936	1204	IRQ2107798_pdf.exe	31
PID 1204 wrote to memory of 2936	1204	IRQ2107798_pdf.exe	31
PID 1204 wrote to memory of 2936	1204	IRQ2107798_pdf.exe	31
PID 1204 wrote to memory of 2936	1204	IRQ2107798_pdf.exe	31
PID 1204 wrote to memory of 2216	1204	IRQ2107798_pdf.exe	32
PID 1204 wrote to memory of 2216	1204	IRQ2107798_pdf.exe	32
PID 1204 wrote to memory of 2216	1204	IRQ2107798_pdf.exe	32
PID 1204 wrote to memory of 2216	1204	IRQ2107798_pdf.exe	32
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1204 wrote to memory of 2632	1204	IRQ2107798_pdf.exe	35
PID 1192 wrote to memory of 3024	1192	Explorer.EXE	36
PID 1192 wrote to memory of 3024	1192	Explorer.EXE	36
PID 1192 wrote to memory of 3024	1192	Explorer.EXE	36
PID 1192 wrote to memory of 3024	1192	Explorer.EXE	36
PID 3024 wrote to memory of 2984	3024	help.exe	37
PID 3024 wrote to memory of 2984	3024	help.exe	37
PID 3024 wrote to memory of 2984	3024	help.exe	37
PID 3024 wrote to memory of 2984	3024	help.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NOFecdqPGEcwut.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2936
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NOFecdqPGEcwut" /XML "C:\Users\Admin\AppData\Local\Temp\tmp43B4.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2216
- - C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2632
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:3024
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp43B4.tmp

Filesize
1KB

MD5
f0b27bfa6f4f28a8d9158d014a332072

SHA1
2c79b1ce307271204b097cc58843fbf02910fb3a

SHA256
f16445d2f6b042bf6115b3db90ddc0d7ec6d5d34a65f0d4e767ebc8a4816b70b

SHA512
8121d048d872bd60565c36ec03ae5d6a6d8a028eb1d30af867b5632afb1ceca059aa27dd4c73ba66edbda5905a5b7b2452cd1f8936c22ac95ea6ee6430b3c7d9

Download Submit
memory/1192-29-0x0000000007460000-0x000000000760D000-memory.dmp

Filesize
1.7MB

Download
memory/1204-10-0x0000000004ED0000-0x0000000004F62000-memory.dmp

Filesize
584KB

Download
memory/1204-27-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1204-5-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1204-4-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1204-6-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/1204-7-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-8-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1204-9-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1204-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/1204-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-18-0x0000000001160000-0x0000000001194000-memory.dmp

Filesize
208KB

Download
memory/1204-1-0x00000000011A0000-0x000000000124E000-memory.dmp

Filesize
696KB

Download
memory/1204-3-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1204-26-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2632-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2632-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2632-28-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2632-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3024-30-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

Filesize
24KB

Download
memory/3024-31-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads