formbook | 5c2a86ed29bd6dd599bd6be9aaaa55a130479f5bbce253ab18bc70c3efcdedec

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2024 00:12

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General

Target

számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe
Size

841KB
MD5

2ca1db1686ff55281637e04d05649c60
SHA1

12f5533069b7c700d09083d1825c2b367898e989
SHA256

fbab206c6c7b6965e909774c6fa2a331c047ed35178fc94878196728c2a0ec88
SHA512

123308f4cfd36288682557f07fbaa615bee627dbf31e8f325cf6c738cc0abe8a7e134d2c79a02734872ad398e0a40a1376559b279fc2f4c796d29d507d5c9b70
SSDEEP

12288:ehkDgouVA2nxKkorvdRgQriDwOIxmxiZnYQE7PJcE4aCCse57kV60s1myQx1/dOe:uRmJkcoQricOIQxiZY1iaCG5MFs1gJ

Score

10^/10

formbook ud04 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ud04

Decoy

oum7.pro

ovonordisk.online

akrzus.pro

tendmtedcpsa.site

mm.foo

animevyhgsft29817.click

digdxxb.info

1130.vip

uy-now-pay-later-74776.bond

ybzert.online

edcn.link

rime-flow-bay.xyz

nd777id.beauty

otoyama.shop

lranchomx.xyz

unluoren.top

uglesang-troms.net

udulbet88.net

raquewear.shop

ijanarko.net

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2112-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2112-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2112-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3640-24-0x00000000004D0000-0x00000000004FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2280 set thread context of 2112	2280	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe	86
PID 2112 set thread context of 3348	2112	svchost.exe	56
PID 2112 set thread context of 3348	2112	svchost.exe	56
PID 3640 set thread context of 3348	3640	systray.exe	56

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 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe
3640	systray.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2280	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
3640	systray.exe
3640	systray.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	svchost.exe
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE
Token: SeDebugPrivilege	3640	systray.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3348	Explorer.EXE
3348	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3348	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2112	2280	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe	86
PID 2280 wrote to memory of 2112	2280	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe	86
PID 2280 wrote to memory of 2112	2280	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe	86
PID 2280 wrote to memory of 2112	2280	számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe	86
PID 3348 wrote to memory of 3640	3348	Explorer.EXE	94
PID 3348 wrote to memory of 3640	3348	Explorer.EXE	94
PID 3348 wrote to memory of 3640	3348	Explorer.EXE	94
PID 3640 wrote to memory of 2996	3640	systray.exe	97
PID 3640 wrote to memory of 2996	3640	systray.exe	97
PID 3640 wrote to memory of 2996	3640	systray.exe	97

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:3348
- C:\Users\Admin\AppData\Local\Temp\számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe
  "C:\Users\Admin\AppData\Local\Temp\számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2280
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\számla kiegyenlítése fizetéshez 2024. november 12.xlsx.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2112
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:3640
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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/2112-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2112-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2112-13-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/2112-16-0x0000000001C90000-0x0000000001CA4000-memory.dmp

Filesize
80KB

Download
memory/2112-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2112-20-0x0000000003620000-0x0000000003634000-memory.dmp

Filesize
80KB

Download
memory/2280-11-0x0000000004150000-0x0000000004350000-memory.dmp

Filesize
2.0MB

Download
memory/3348-21-0x000000000AFB0000-0x000000000B115000-memory.dmp

Filesize
1.4MB

Download
memory/3348-17-0x0000000008D40000-0x0000000008E59000-memory.dmp

Filesize
1.1MB

Download
memory/3348-25-0x000000000AFB0000-0x000000000B115000-memory.dmp

Filesize
1.4MB

Download
memory/3348-28-0x0000000008BD0000-0x0000000008CAF000-memory.dmp

Filesize
892KB

Download
memory/3348-29-0x0000000008BD0000-0x0000000008CAF000-memory.dmp

Filesize
892KB

Download
memory/3348-31-0x0000000008BD0000-0x0000000008CAF000-memory.dmp

Filesize
892KB

Download
memory/3640-23-0x0000000000BD0000-0x0000000000BD6000-memory.dmp

Filesize
24KB

Download
memory/3640-22-0x0000000000BD0000-0x0000000000BD6000-memory.dmp

Filesize
24KB

Download
memory/3640-24-0x00000000004D0000-0x00000000004FF000-memory.dmp

Filesize
188KB

Download