formbook | 7385e28efaddf884f97be5ac178a05d5c6e523a616ba20980121005428fe3765

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
11/12/2023, 11:30

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General

Target

534353667789.exe
Size

1.0MB
MD5

04c891b9979e4852e90c8c061473058c
SHA1

ab22fb90604c58e206bc3bc0c33c0b5768db6fcf
SHA256

7385e28efaddf884f97be5ac178a05d5c6e523a616ba20980121005428fe3765
SHA512

92f7168e7eed554938e5eb9027418734ac8898db2bada777aebc3b58e606a9bfc90cbf1234d98defe15445d9c7e5907878eaf6f1754378144b456b6c7766643e
SSDEEP

24576:0it4uJtHL/PkgSAq5dRHBez6oONXEef2sS5OnYi:0iWiH7P85fsz6oM2mn/

Score

10^/10

formbook modiloader ao65 persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ao65

Decoy

spins2023.pro

foodontario.com

jsnmz.com

canwealljustagree.com

shopthedivine.store

thelakahealth.com

kuis-raja-borong.website

hbqc2.com

optimusvisionlb.com

urdulatest.com

akhayarplus.com

info-antai-service.com

kermisbedrijfkramer.online

epansion.com

gxqingmeng.top

maltsky.net

ictwath.com

sharmafootcare.com

mycheese.net

portfoliotestkitchen.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4688-8-0x0000000002870000-0x0000000003870000-memory.dmp	formbook
behavioral2/memory/4688-12-0x0000000002870000-0x0000000003870000-memory.dmp	formbook
behavioral2/memory/4644-19-0x0000000000BA0000-0x0000000000BCF000-memory.dmp	formbook
behavioral2/memory/4644-21-0x0000000000BA0000-0x0000000000BCF000-memory.dmp	formbook

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral2/memory/4808-2-0x0000000003DA0000-0x0000000004DA0000-memory.dmp	modiloader_stage2

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-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vkxxtlgy = "C:\\Users\\Public\\Vkxxtlgy.url"	534353667789.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4688 set thread context of 3284	4688	SndVol.exe	41
PID 4644 set thread context of 3284	4644	rundll32.exe	41

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	57	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	61	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4808	534353667789.exe
4808	534353667789.exe
4688	SndVol.exe
4688	SndVol.exe
4688	SndVol.exe
4688	SndVol.exe
4688	SndVol.exe
4688	SndVol.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe
4644	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4688	SndVol.exe
4688	SndVol.exe
4688	SndVol.exe
4644	rundll32.exe
4644	rundll32.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeDebugPrivilege	4688	SndVol.exe
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeDebugPrivilege	4644	rundll32.exe
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE
Token: SeShutdownPrivilege	3284	Explorer.EXE
Token: SeCreatePagefilePrivilege	3284	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4688	SndVol.exe
3284	Explorer.EXE
3284	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4688	SndVol.exe
4688	SndVol.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3284	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 4688	4808	534353667789.exe	102
PID 4808 wrote to memory of 4688	4808	534353667789.exe	102
PID 4808 wrote to memory of 4688	4808	534353667789.exe	102
PID 4808 wrote to memory of 4688	4808	534353667789.exe	102
PID 3284 wrote to memory of 4644	3284	Explorer.EXE	103
PID 3284 wrote to memory of 4644	3284	Explorer.EXE	103
PID 3284 wrote to memory of 4644	3284	Explorer.EXE	103
PID 4644 wrote to memory of 1452	4644	rundll32.exe	105
PID 4644 wrote to memory of 1452	4644	rundll32.exe	105
PID 4644 wrote to memory of 1452	4644	rundll32.exe	105

C:\Users\Admin\AppData\Local\Temp\534353667789.exe
"C:\Users\Admin\AppData\Local\Temp\534353667789.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\SndVol.exe
  C:\Windows\System32\SndVol.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4688

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3284
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4644
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\SndVol.exe"
    3⤵
    PID:1452

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3284-14-0x0000000008520000-0x0000000008632000-memory.dmp

Filesize
1.1MB

Download
memory/3284-30-0x0000000002B90000-0x0000000002C30000-memory.dmp

Filesize
640KB

Download
memory/3284-27-0x0000000002B90000-0x0000000002C30000-memory.dmp

Filesize
640KB

Download
memory/3284-26-0x0000000002B90000-0x0000000002C30000-memory.dmp

Filesize
640KB

Download
memory/4644-20-0x0000000002C50000-0x0000000002F9A000-memory.dmp

Filesize
3.3MB

Download
memory/4644-23-0x0000000002AC0000-0x0000000002B54000-memory.dmp

Filesize
592KB

Download
memory/4644-21-0x0000000000BA0000-0x0000000000BCF000-memory.dmp

Filesize
188KB

Download
memory/4644-19-0x0000000000BA0000-0x0000000000BCF000-memory.dmp

Filesize
188KB

Download
memory/4644-18-0x00000000007F0000-0x0000000000804000-memory.dmp

Filesize
80KB

Download
memory/4644-15-0x00000000007F0000-0x0000000000804000-memory.dmp

Filesize
80KB

Download
memory/4688-8-0x0000000002870000-0x0000000003870000-memory.dmp

Filesize
16.0MB

Download
memory/4688-13-0x00000000160D0000-0x00000000160E5000-memory.dmp

Filesize
84KB

Download
memory/4688-12-0x0000000002870000-0x0000000003870000-memory.dmp

Filesize
16.0MB

Download
memory/4688-10-0x00000000160F0000-0x000000001643A000-memory.dmp

Filesize
3.3MB

Download
memory/4808-0-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/4808-4-0x0000000000400000-0x0000000000513000-memory.dmp

Filesize
1.1MB

Download
memory/4808-2-0x0000000003DA0000-0x0000000004DA0000-memory.dmp

Filesize
16.0MB

Download
memory/4808-1-0x0000000003DA0000-0x0000000004DA0000-memory.dmp

Filesize
16.0MB

Download