formbook | 3143d6dc91bd82fb792a14bf09ff9b5820c139acad99c1ddc6c7c2e2b781a39c

Analysis

max time kernel
300s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 13:54

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General

Target

shipment doc.exe
Size

697KB
MD5

d21eb7f591f7026977a946756afc5f0c
SHA1

50b8eb9bd2c5178ecff93794529bd33130d61db2
SHA256

2847c9264726b6c4abbcede6bfc40c2386e93e81a8cd968c19e5493e08851f1a
SHA512

80e8c1dbf23d678e7d846173674a884ebef12f627655f8b3a6ca13f8d2d1e339883d0fd2f115078ac9b76d8caeec7c3c76b7e34ef58cbc61c6afe3f421682765
SSDEEP

12288:VsM2zPHKBsXeVZ79OLkj4xXVaOkwJp8fZ6MpzKX0Z/joI6MhH9CA0II1RveBYT:VsM2z1XQZxbjKFWGKh6kzKXSLoInhH9W

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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/636-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/636-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2808-21-0x0000000000080000-0x00000000000AF000-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
332	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2148 set thread context of 636	2148	shipment doc.exe	32
PID 636 set thread context of 1196	636	MSBuild.exe	21
PID 636 set thread context of 1196	636	MSBuild.exe	21
PID 2808 set thread context of 1196	2808	raserver.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shipment doc.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
636	MSBuild.exe
636	MSBuild.exe
332	powershell.exe
636	MSBuild.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe
2808	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
636	MSBuild.exe
636	MSBuild.exe
636	MSBuild.exe
636	MSBuild.exe
2808	raserver.exe
2808	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	MSBuild.exe
Token: SeDebugPrivilege	332	powershell.exe
Token: SeDebugPrivilege	2808	raserver.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 332	2148	shipment doc.exe	31
PID 2148 wrote to memory of 332	2148	shipment doc.exe	31
PID 2148 wrote to memory of 332	2148	shipment doc.exe	31
PID 2148 wrote to memory of 332	2148	shipment doc.exe	31
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 2148 wrote to memory of 636	2148	shipment doc.exe	32
PID 1196 wrote to memory of 2808	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2808	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2808	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2808	1196	Explorer.EXE	34
PID 2808 wrote to memory of 2652	2808	raserver.exe	35
PID 2808 wrote to memory of 2652	2808	raserver.exe	35
PID 2808 wrote to memory of 2652	2808	raserver.exe	35
PID 2808 wrote to memory of 2652	2808	raserver.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\shipment doc.exe
  "C:\Users\Admin\AppData\Local\Temp\shipment doc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2148
- - 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\shipment doc.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:332
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:636
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2808
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/636-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/636-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/636-13-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/636-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/636-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1196-17-0x0000000003110000-0x0000000003210000-memory.dmp

Filesize
1024KB

Download
memory/1196-19-0x0000000004C30000-0x0000000004D23000-memory.dmp

Filesize
972KB

Download
memory/2148-6-0x0000000000AF0000-0x0000000000B66000-memory.dmp

Filesize
472KB

Download
memory/2148-5-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-4-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2148-3-0x0000000000580000-0x0000000000592000-memory.dmp

Filesize
72KB

Download
memory/2148-2-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-15-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2148-1-0x00000000013D0000-0x0000000001484000-memory.dmp

Filesize
720KB

Download
memory/2808-20-0x00000000002C0000-0x00000000002DC000-memory.dmp

Filesize
112KB

Download
memory/2808-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download