formbook | 472a703381c8fe89f83b0fe4d7960b0942c5694054ba94dd85c249c4c702e0cd

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2024 09:38

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General

Target

PURCHASEDORDEROFENG091.exe
Size

24KB
MD5

30ecd7046839af0716977a9ef6047e60
SHA1

a1f6517726c9dc0f3d588b947e2aaeb4f849f58c
SHA256

472a703381c8fe89f83b0fe4d7960b0942c5694054ba94dd85c249c4c702e0cd
SHA512

7dad8ec1c5040112deee48ef6dbd56e7aac3db65dee11568f5e9fea96b33b2b6030f560c834ba51dcb0cb98eb837c2638e7f9c8b39c1f46395bd8259c88f8937
SSDEEP

384:zZizC2pKXg9eH58VkRS/oFGPikzhlZBBmBi1S0f9EKR4VWjs5anwNmJ8sxSvpphB:z/wJevBzM6RB

Score

10^/10

formbook btrd discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

btrd

Decoy

everslane.com

prairieviewelectric.online

dszvhgd.com

papamuch.com

8129k.vip

jeffreestar.gold

bestguestrentals.com

nvzhuang1.net

anangtoto.com

yxfgor.top

practicalpoppers.com

thebestanglephotography.online

koormm.top

criika.net

audioflow.online

380747.net

jiuguanwang.net

bloxequities.com

v321c.com

sugar.monster

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
behavioral2/memory/2492-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2492-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1452-24-0x00000000009D0000-0x00000000009FF000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PURCHASEDORDEROFENG091 = "C:\\Users\\Admin\\Documents\\PURCHASEDORDEROFENG091.pif"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 2492 set thread context of 3560	2492	RegAsm.exe	56
PID 1452 set thread context of 3560	1452	raserver.exe	56

System Location Discovery: System Language Discovery 1 TTPs 7 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	PURCHASEDORDEROFENG091.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
1956	PURCHASEDORDEROFENG091.exe
2492	RegAsm.exe
2492	RegAsm.exe
2492	RegAsm.exe
2492	RegAsm.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe
1452	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2492	RegAsm.exe
2492	RegAsm.exe
2492	RegAsm.exe
1452	raserver.exe
1452	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	PURCHASEDORDEROFENG091.exe
Token: SeDebugPrivilege	2492	RegAsm.exe
Token: SeDebugPrivilege	1452	raserver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3560	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 4856	1956	PURCHASEDORDEROFENG091.exe	85
PID 1956 wrote to memory of 4856	1956	PURCHASEDORDEROFENG091.exe	85
PID 1956 wrote to memory of 4856	1956	PURCHASEDORDEROFENG091.exe	85
PID 4856 wrote to memory of 468	4856	cmd.exe	87
PID 4856 wrote to memory of 468	4856	cmd.exe	87
PID 4856 wrote to memory of 468	4856	cmd.exe	87
PID 1956 wrote to memory of 1860	1956	PURCHASEDORDEROFENG091.exe	88
PID 1956 wrote to memory of 1860	1956	PURCHASEDORDEROFENG091.exe	88
PID 1956 wrote to memory of 1860	1956	PURCHASEDORDEROFENG091.exe	88
PID 1956 wrote to memory of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 1956 wrote to memory of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 1956 wrote to memory of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 1956 wrote to memory of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 1956 wrote to memory of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 1956 wrote to memory of 2492	1956	PURCHASEDORDEROFENG091.exe	90
PID 3560 wrote to memory of 1452	3560	Explorer.EXE	91
PID 3560 wrote to memory of 1452	3560	Explorer.EXE	91
PID 3560 wrote to memory of 1452	3560	Explorer.EXE	91
PID 1452 wrote to memory of 4724	1452	raserver.exe	92
PID 1452 wrote to memory of 4724	1452	raserver.exe	92
PID 1452 wrote to memory of 4724	1452	raserver.exe	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Users\Admin\AppData\Local\Temp\PURCHASEDORDEROFENG091.exe
  "C:\Users\Admin\AppData\Local\Temp\PURCHASEDORDEROFENG091.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "PURCHASEDORDEROFENG091" /t REG_SZ /F /D "C:\Users\Admin\Documents\PURCHASEDORDEROFENG091.pif"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4856
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "PURCHASEDORDEROFENG091" /t REG_SZ /F /D "C:\Users\Admin\Documents\PURCHASEDORDEROFENG091.pif"
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:468
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c Copy "C:\Users\Admin\AppData\Local\Temp\PURCHASEDORDEROFENG091.exe" "C:\Users\Admin\Documents\PURCHASEDORDEROFENG091.pif"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1860
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2492
- 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:1452
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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/1452-21-0x0000000000080000-0x000000000009F000-memory.dmp

Filesize
124KB

Download
memory/1452-24-0x00000000009D0000-0x00000000009FF000-memory.dmp

Filesize
188KB

Download
memory/1452-23-0x0000000000080000-0x000000000009F000-memory.dmp

Filesize
124KB

Download
memory/1956-10-0x00000000064B0000-0x0000000006516000-memory.dmp

Filesize
408KB

Download
memory/1956-15-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-5-0x0000000004C60000-0x0000000004C6A000-memory.dmp

Filesize
40KB

Download
memory/1956-6-0x0000000004F50000-0x0000000004FC6000-memory.dmp

Filesize
472KB

Download
memory/1956-7-0x0000000004DA0000-0x0000000004DBE000-memory.dmp

Filesize
120KB

Download
memory/1956-8-0x00000000061E0000-0x0000000006274000-memory.dmp

Filesize
592KB

Download
memory/1956-9-0x0000000006310000-0x00000000063AC000-memory.dmp

Filesize
624KB

Download
memory/1956-0-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/1956-1-0x00000000002B0000-0x00000000002BC000-memory.dmp

Filesize
48KB

Download
memory/1956-4-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-2-0x0000000005330000-0x00000000058D4000-memory.dmp

Filesize
5.6MB

Download
memory/1956-3-0x0000000004C80000-0x0000000004D12000-memory.dmp

Filesize
584KB

Download
memory/2492-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2492-19-0x0000000002EC0000-0x0000000002ED4000-memory.dmp

Filesize
80KB

Download
memory/2492-16-0x0000000002B70000-0x0000000002EBA000-memory.dmp

Filesize
3.3MB

Download
memory/2492-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3560-20-0x0000000008AC0000-0x0000000008C14000-memory.dmp

Filesize
1.3MB

Download
memory/3560-25-0x0000000008AC0000-0x0000000008C14000-memory.dmp

Filesize
1.3MB

Download
memory/3560-29-0x0000000002D60000-0x0000000002E3C000-memory.dmp

Filesize
880KB

Download