formbook | 13c2e846638381446a4ec491de6e5b979b1b8a755971e1181631c3c6b6c1967f

General

Target

sample.exe
Size

845KB
MD5

0a0a91d81009e6f2543b365205d64cb8
SHA1

39cb4d0850b9d29661b53d62ddd47e3d085e8698
SHA256

b422b2744a87addbf9840dc44b5126379adfcf2a1e47bf6987e05616af4547d2
SHA512

da6e5672b21a523dcca1ad45f6b4a88d88db98503955d218d07e6a4522fe1e07c28fcf2b52c5a974ea77b7850dc44b6f4c3b91e19342dbf8ee84dc2fbbb8eeb9
SSDEEP

12288:A1d8c3QBT80DYfXPrk8C9p+AdiH6gZlrjP2V1Vsbw31o/r9rRWPZVmX1Vwm4Dw5z:10dZlo1uwSRWrmXHUDw53Q6F

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/1840-19-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1840-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2024-28-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 1840	2096	sample.exe	34
PID 1840 set thread context of 1224	1840	RegSvcs.exe	21
PID 2024 set thread context of 1224	2024	wininit.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	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.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
2356	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2096	sample.exe
1840	RegSvcs.exe
1840	RegSvcs.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe
2024	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1840	RegSvcs.exe
1840	RegSvcs.exe
1840	RegSvcs.exe
2024	wininit.exe
2024	wininit.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	sample.exe
Token: SeDebugPrivilege	1840	RegSvcs.exe
Token: SeDebugPrivilege	2024	wininit.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2356	2096	sample.exe	32
PID 2096 wrote to memory of 2356	2096	sample.exe	32
PID 2096 wrote to memory of 2356	2096	sample.exe	32
PID 2096 wrote to memory of 2356	2096	sample.exe	32
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 2096 wrote to memory of 1840	2096	sample.exe	34
PID 1224 wrote to memory of 2024	1224	Explorer.EXE	35
PID 1224 wrote to memory of 2024	1224	Explorer.EXE	35
PID 1224 wrote to memory of 2024	1224	Explorer.EXE	35
PID 1224 wrote to memory of 2024	1224	Explorer.EXE	35
PID 2024 wrote to memory of 1996	2024	wininit.exe	36
PID 2024 wrote to memory of 1996	2024	wininit.exe	36
PID 2024 wrote to memory of 1996	2024	wininit.exe	36
PID 2024 wrote to memory of 1996	2024	wininit.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\sample.exe
  "C:\Users\Admin\AppData\Local\Temp\sample.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2096
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VsXfErKVoHy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp626B.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2356
- - 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:1840
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.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:2024
- - 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:1996

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp626B.tmp

Filesize
1KB

MD5
7828bd7ca01e6e8e003e89897c941aa3

SHA1
3dcb660bda87a266301da267e505cd8488eac869

SHA256
639e85c146edf2ebc0c17011ea8d9121ef362988282de22cba0b879e5e4b5e9d

SHA512
ae6e00f45d5c649b494c18391038c8651ea8bf7b7123b49d3b7a75be41d6e8ae5e1667e58989c4891dc26db74d60fd1380384077a76614a5818bea29b7b58165

Download Submit
memory/1224-29-0x0000000004990000-0x0000000004AED000-memory.dmp

Filesize
1.4MB

Download
memory/1224-25-0x0000000004990000-0x0000000004AED000-memory.dmp

Filesize
1.4MB

Download
memory/1840-24-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/1840-21-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/1840-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1840-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1840-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1840-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1840-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-28-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/2024-26-0x0000000000BD0000-0x0000000000BEA000-memory.dmp

Filesize
104KB

Download
memory/2024-27-0x0000000000BD0000-0x0000000000BEA000-memory.dmp

Filesize
104KB

Download
memory/2096-20-0x0000000074E50000-0x000000007553E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-4-0x0000000074E5E000-0x0000000074E5F000-memory.dmp

Filesize
4KB

Download
memory/2096-0-0x0000000074E5E000-0x0000000074E5F000-memory.dmp

Filesize
4KB

Download
memory/2096-2-0x0000000000300000-0x0000000000312000-memory.dmp

Filesize
72KB

Download
memory/2096-3-0x0000000074E50000-0x000000007553E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-6-0x00000000004D0000-0x0000000000572000-memory.dmp

Filesize
648KB

Download
memory/2096-5-0x0000000074E50000-0x000000007553E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-1-0x0000000000850000-0x000000000092A000-memory.dmp

Filesize
872KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads