formbook | 8aed421adbff85ab74e502c4fe7a8f3d338642e1fc1e7f3f13ce501d6c2cfcde

Analysis

max time kernel
147s
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
07-11-2024 12:44

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General

Target

Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe
Size

1.4MB
MD5

6de30093ba5663d3446d5fa60d4b229c
SHA1

6a2c90171b273c0123aba4a8a0a89506ae05c2bb
SHA256

e790e710f5020d3450504e9dd7001c5279ef5d9b01dd133783542ad184771517
SHA512

342c678c3b335b0e4ece024195a555fc4e570d7d50f367af331ab76ef913584460239e25825170db670ad116319eb6852c93014ed5efb643e05ce7c40ca4f6da
SSDEEP

24576:TqDEvCTbMWu7rQYlBQcBiT6rprG8amfdOEsqRONlanXbINp:TTvC/MTQYxsWR7amfvROan

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/4068-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4068-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4532-14-0x0000000000870000-0x000000000089F000-memory.dmp	formbook
behavioral2/memory/4532-16-0x0000000000870000-0x000000000089F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exesvchost.exemsiexec.exe

description	pid	Process	procid_target
PID 4116 set thread context of 4068	4116	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe	86
PID 4068 set thread context of 3460	4068	svchost.exe	56
PID 4532 set thread context of 3460	4532	msiexec.exe	56

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:

Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exemsiexec.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

Processes:

Explorer.EXE

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

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exemsiexec.exe

pid	Process
4068	svchost.exe
4068	svchost.exe
4068	svchost.exe
4068	svchost.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe
4532	msiexec.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exesvchost.exemsiexec.exe

pid	Process
4116	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe
4068	svchost.exe
4068	svchost.exe
4068	svchost.exe
4532	msiexec.exe
4532	msiexec.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

svchost.exeExplorer.EXEmsiexec.exe

description	pid	Process
Token: SeDebugPrivilege	4068	svchost.exe
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeDebugPrivilege	4532	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid	Process
3460	Explorer.EXE
3460	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3460	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exeExplorer.EXEmsiexec.exe

description	pid	Process	procid_target
PID 4116 wrote to memory of 4068	4116	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe	86
PID 4116 wrote to memory of 4068	4116	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe	86
PID 4116 wrote to memory of 4068	4116	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe	86
PID 4116 wrote to memory of 4068	4116	Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe	86
PID 3460 wrote to memory of 4532	3460	Explorer.EXE	87
PID 3460 wrote to memory of 4532	3460	Explorer.EXE	87
PID 3460 wrote to memory of 4532	3460	Explorer.EXE	87
PID 4532 wrote to memory of 4896	4532	msiexec.exe	95
PID 4532 wrote to memory of 4896	4532	msiexec.exe	95
PID 4532 wrote to memory of 4896	4532	msiexec.exe	95

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:3460
- C:\Users\Admin\AppData\Local\Temp\Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe
  "C:\Users\Admin\AppData\Local\Temp\Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Kópia Žiadosti o platbu faktúry 0010 (2).xlsx.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4068
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:4532
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4896

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/3460-8-0x0000000008750000-0x00000000088B3000-memory.dmp

Filesize
1.4MB

Download
memory/3460-21-0x0000000008FA0000-0x0000000009045000-memory.dmp

Filesize
660KB

Download
memory/3460-20-0x0000000008FA0000-0x0000000009045000-memory.dmp

Filesize
660KB

Download
memory/3460-17-0x0000000008750000-0x00000000088B3000-memory.dmp

Filesize
1.4MB

Download
memory/4068-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4068-7-0x0000000001DE0000-0x0000000001DF4000-memory.dmp

Filesize
80KB

Download
memory/4068-4-0x0000000001900000-0x0000000001C4A000-memory.dmp

Filesize
3.3MB

Download
memory/4068-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4116-2-0x0000000001400000-0x0000000001800000-memory.dmp

Filesize
4.0MB

Download
memory/4532-9-0x0000000000040000-0x0000000000052000-memory.dmp

Filesize
72KB

Download
memory/4532-13-0x0000000000040000-0x0000000000052000-memory.dmp

Filesize
72KB

Download
memory/4532-11-0x0000000000040000-0x0000000000052000-memory.dmp

Filesize
72KB

Download
memory/4532-14-0x0000000000870000-0x000000000089F000-memory.dmp

Filesize
188KB

Download
memory/4532-15-0x00000000026F0000-0x0000000002A3A000-memory.dmp

Filesize
3.3MB

Download
memory/4532-16-0x0000000000870000-0x000000000089F000-memory.dmp

Filesize
188KB

Download
memory/4532-18-0x00000000025A0000-0x0000000002633000-memory.dmp

Filesize
588KB

Download