formbook | 4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 02:29

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General

Target

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
Size

1.1MB
MD5

b333b741b51e1fa861d44c2846939182
SHA1

1fe1597be441315cb76e8bfddf97c2344a5d206a
SHA256

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba
SHA512

c85f9f14342e6d49b9d43cf3475f91a5a54cfc4fb89397572027912f4c478b62e306ca0fa2a886e1c89e02c226583eb97eefc04fa45efa8f2d05086a12bf197c
SSDEEP

24576:ctb20pkaCqT5TBWgNQ7a6Vjaab/dPQVW0hFdc6A:FVg5tQ7a6VeGV0WWFC5

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

Processes:

resource	yara_rule
behavioral2/memory/2056-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2056-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2056-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2724-20-0x00000000007B0000-0x00000000007DF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exesvchost.exehelp.exe

description	pid	Process	procid_target
PID 2384 set thread context of 2056	2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	82
PID 2056 set thread context of 3464	2056	svchost.exe	54
PID 2056 set thread context of 3464	2056	svchost.exe	54
PID 2724 set thread context of 3464	2724	help.exe	54

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

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exehelp.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exehelp.exe

pid	Process
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe
2724	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exesvchost.exehelp.exe

pid	Process
2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2724	help.exe
2724	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exehelp.exe

description	pid	Process
Token: SeDebugPrivilege	2056	svchost.exe
Token: SeDebugPrivilege	2724	help.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe

pid	Process
2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe

pid	Process
2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exeExplorer.EXEhelp.exe

description	pid	Process	procid_target
PID 2384 wrote to memory of 2056	2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	82
PID 2384 wrote to memory of 2056	2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	82
PID 2384 wrote to memory of 2056	2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	82
PID 2384 wrote to memory of 2056	2384	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	82
PID 3464 wrote to memory of 2724	3464	Explorer.EXE	88
PID 3464 wrote to memory of 2724	3464	Explorer.EXE	88
PID 3464 wrote to memory of 2724	3464	Explorer.EXE	88
PID 2724 wrote to memory of 2992	2724	help.exe	91
PID 2724 wrote to memory of 2992	2724	help.exe	91
PID 2724 wrote to memory of 2992	2724	help.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3464
- C:\Users\Admin\AppData\Local\Temp\4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
  "C:\Users\Admin\AppData\Local\Temp\4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2056
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:2724
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/2056-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2056-11-0x0000000000970000-0x0000000000984000-memory.dmp

Filesize
80KB

Download
memory/2056-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2056-15-0x0000000000F60000-0x0000000000F74000-memory.dmp

Filesize
80KB

Download
memory/2056-8-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/2056-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2384-6-0x0000000001A60000-0x0000000001E60000-memory.dmp

Filesize
4.0MB

Download
memory/2724-18-0x0000000000610000-0x0000000000617000-memory.dmp

Filesize
28KB

Download
memory/2724-20-0x00000000007B0000-0x00000000007DF000-memory.dmp

Filesize
188KB

Download
memory/2724-19-0x0000000000610000-0x0000000000617000-memory.dmp

Filesize
28KB

Download
memory/3464-12-0x00000000092B0000-0x000000000940F000-memory.dmp

Filesize
1.4MB

Download
memory/3464-16-0x000000000B0C0000-0x000000000B267000-memory.dmp

Filesize
1.7MB

Download
memory/3464-17-0x00000000092B0000-0x000000000940F000-memory.dmp

Filesize
1.4MB

Download
memory/3464-21-0x000000000B0C0000-0x000000000B267000-memory.dmp

Filesize
1.7MB

Download
memory/3464-24-0x0000000009B80000-0x0000000009CCB000-memory.dmp

Filesize
1.3MB

Download
memory/3464-26-0x0000000009B80000-0x0000000009CCB000-memory.dmp

Filesize
1.3MB

Download
memory/3464-27-0x0000000009B80000-0x0000000009CCB000-memory.dmp

Filesize
1.3MB

Download