formbook | a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d

General

Target

a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe
Size

730KB
MD5

47f67ecfb3eb722a3d7aefb8b5ac8b54
SHA1

78da020402a8413cdf7d663a196c9ce46577bdbb
SHA256

a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d
SHA512

6b82898b826ee2fc7b8f1e39c4302cb69fef655bb6cc7389cb8397c8dcca28cbe3a81ec84d96fb1e13692aa833894b1b2ef7c56628685d42853808495a695ca3
SSDEEP

12288:CQq8Tj0Kd+D1fDwAmlhwJogsFRot09s4KlV7N5r:h5f0/8gsFRouu/7NZ

Score

10^/10

formbook cu29 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cu29

Decoy

qidr.shop

usinessaviationconsulting.net

68716329.xyz

nd-los.net

ealthironcladguarantee.shop

oftware-download-69354.bond

48372305.top

omeownershub.top

mall-chilli.top

ajakgoid.online

ire-changer-53482.bond

rugsrx.shop

oyang123.info

azino-forum-pro.online

817715.rest

layman.vip

eb777.club

ovatonica.net

urgaslotvip.website

inn-paaaa.buzz

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2892-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2776-25-0x0000000000090000-0x00000000000BF000-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
2300	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1232 set thread context of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 2892 set thread context of 1188	2892	vbc.exe	21
PID 2776 set thread context of 1188	2776	rundll32.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	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.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	rundll32.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
2052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe
2892	vbc.exe
2892	vbc.exe
1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe
2300	powershell.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2892	vbc.exe
2892	vbc.exe
2892	vbc.exe
2776	rundll32.exe
2776	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe
Token: SeDebugPrivilege	2892	vbc.exe
Token: SeDebugPrivilege	2300	powershell.exe
Token: SeDebugPrivilege	2776	rundll32.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 2300	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	31
PID 1232 wrote to memory of 2300	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	31
PID 1232 wrote to memory of 2300	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	31
PID 1232 wrote to memory of 2300	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	31
PID 1232 wrote to memory of 2052	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	32
PID 1232 wrote to memory of 2052	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	32
PID 1232 wrote to memory of 2052	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	32
PID 1232 wrote to memory of 2052	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	32
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1232 wrote to memory of 2892	1232	a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe	35
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2776	1188	Explorer.EXE	36
PID 2776 wrote to memory of 2604	2776	rundll32.exe	37
PID 2776 wrote to memory of 2604	2776	rundll32.exe	37
PID 2776 wrote to memory of 2604	2776	rundll32.exe	37
PID 2776 wrote to memory of 2604	2776	rundll32.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe
  "C:\Users\Admin\AppData\Local\Temp\a327355ae6e99929d1303a762ea8a936d8e4884f45d683de08dba6882c1c016d.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tshjuqE.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2300
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tshjuqE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB0A.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2892
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:2776
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

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\tmpEB0A.tmp

Filesize
1KB

MD5
f3e91483491320160099ff5c69f1f0a3

SHA1
3146138bf3a5effedbb9bfa9697392057276a2b6

SHA256
38eb062a8cb235784f438803a363806f790c6976b61d45326ee73d353dcd5b8e

SHA512
dec4c008b9c6c7bf054cc678d6a9751650b1cfd0994d0dd188db49ac5ffaecddd6caac240c6ada514f3943eb4ce82d950c258150897ad8adf19fa642d32cc64a

Download Submit
memory/1232-21-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1232-0-0x000000007407E000-0x000000007407F000-memory.dmp

Filesize
4KB

Download
memory/1232-3-0x00000000002B0000-0x00000000002CE000-memory.dmp

Filesize
120KB

Download
memory/1232-4-0x000000007407E000-0x000000007407F000-memory.dmp

Filesize
4KB

Download
memory/1232-5-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1232-6-0x00000000003E0000-0x0000000000456000-memory.dmp

Filesize
472KB

Download
memory/1232-2-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1232-1-0x0000000001380000-0x000000000143C000-memory.dmp

Filesize
752KB

Download
memory/2776-25-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2776-24-0x00000000007B0000-0x00000000007BE000-memory.dmp

Filesize
56KB

Download
memory/2776-22-0x00000000007B0000-0x00000000007BE000-memory.dmp

Filesize
56KB

Download
memory/2892-18-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2892-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2892-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads