formbook | 739a7a2cd1b3799605d3d7ded9fc159d74b20b9b5b8bfb46fd870d93fa825a49

General

Target

Nov.pdf.exe
Size

634KB
MD5

406a8800ac851d7591b9faa57c7a540a
SHA1

62df23d861119dae068567ed47259c44a9121064
SHA256

714c331c290a9293ff62b5ef61add6cdc8d33043b2290c4e422f18ade08a513a
SHA512

51e74669a8e11ac12409a61828d283747e20b9f439db9da158232a44c7ca9aff6d2aafa8506791566e03df44c36251b612daa9a8dd0eebeadc6ee338ed2a3ffa
SSDEEP

12288:WBpCdKYpMlSGbv567mWTWwwjENXl+6vkMFfVIQZWaxyc0d1is:MMQYCSGb5cmqfwj61MMFfVIcycA4

Score

10^/10

formbook sqxs discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sqxs

Decoy

creid-network.com

dinningatcastlehill.com

fundadilla.com

fashionmdeasy.com

magentos6.com

pushpartybdp.com

streamingnetwork.xyz

sevenredwalls.com

hsuehsun.space

leanbirthdaycake.com

rocketmortgagedeceit.com

cashflowdb.com

smilebringerdesign.com

naomicoleclinic.com

wingsforklift.com

newsounding.com

48hrbusinessrescue.pro

101osthoff456.com

attleticgreens.com

xx233.xyz

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/1828-20-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1828-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2032-31-0x00000000000D0000-0x00000000000FE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2124 set thread context of 1828	2124	Nov.pdf.exe	33
PID 1828 set thread context of 1208	1828	RegSvcs.exe	21
PID 2032 set thread context of 1208	2032	msiexec.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	Nov.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.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
2296	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2124	Nov.pdf.exe
2124	Nov.pdf.exe
1828	RegSvcs.exe
2124	Nov.pdf.exe
1828	RegSvcs.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1828	RegSvcs.exe
1828	RegSvcs.exe
1828	RegSvcs.exe
2032	msiexec.exe
2032	msiexec.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	Nov.pdf.exe
Token: SeDebugPrivilege	1828	RegSvcs.exe
Token: SeDebugPrivilege	2032	msiexec.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2296	2124	Nov.pdf.exe	31
PID 2124 wrote to memory of 2296	2124	Nov.pdf.exe	31
PID 2124 wrote to memory of 2296	2124	Nov.pdf.exe	31
PID 2124 wrote to memory of 2296	2124	Nov.pdf.exe	31
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 2124 wrote to memory of 1828	2124	Nov.pdf.exe	33
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 1208 wrote to memory of 2032	1208	Explorer.EXE	34
PID 2032 wrote to memory of 1160	2032	msiexec.exe	35
PID 2032 wrote to memory of 1160	2032	msiexec.exe	35
PID 2032 wrote to memory of 1160	2032	msiexec.exe	35
PID 2032 wrote to memory of 1160	2032	msiexec.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\Nov.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Nov.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ynHpXzKuzkLW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49CC.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2296
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1828
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:2032
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\tmp49CC.tmp

Filesize
1KB

MD5
f4cc5846987f839ed38585e9bdc48564

SHA1
195c10e92d05d3a10e598b10ffe4236c3e29817f

SHA256
105136e6f1654d2cb0491ddee5b1811b38974f918c9db61f4ec8d5039bb5b6a7

SHA512
f3265d09824da87146c9654c9af40efceea44c4e000006162067b7da31528f66d76ef12668714d6d8cbb734c920c45fef69319be472d20a2bed84aeab730def2

Download Submit
memory/1208-32-0x00000000051B0000-0x00000000052C9000-memory.dmp

Filesize
1.1MB

Download
memory/1208-26-0x00000000051B0000-0x00000000052C9000-memory.dmp

Filesize
1.1MB

Download
memory/1828-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1828-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1828-21-0x0000000000AC0000-0x0000000000DC3000-memory.dmp

Filesize
3.0MB

Download
memory/1828-24-0x0000000000170000-0x0000000000184000-memory.dmp

Filesize
80KB

Download
memory/1828-20-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1828-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1828-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2032-28-0x0000000000FC0000-0x0000000000FD4000-memory.dmp

Filesize
80KB

Download
memory/2032-31-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/2032-30-0x0000000000FC0000-0x0000000000FD4000-memory.dmp

Filesize
80KB

Download
memory/2032-27-0x0000000000FC0000-0x0000000000FD4000-memory.dmp

Filesize
80KB

Download
memory/2124-25-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2124-2-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2124-4-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/2124-5-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2124-6-0x0000000005000000-0x000000000507E000-memory.dmp

Filesize
504KB

Download
memory/2124-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/2124-7-0x0000000004290000-0x00000000042C8000-memory.dmp

Filesize
224KB

Download
memory/2124-3-0x0000000000550000-0x000000000055C000-memory.dmp

Filesize
48KB

Download
memory/2124-1-0x00000000002C0000-0x0000000000364000-memory.dmp

Filesize
656KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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