formbook | 0856d56979e38321be30e3d30250c260bf0bd8c7291072ead288b52ab6d79a09

Analysis

max time kernel
299s
max time network
291s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-11-2024 15:58

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General

Target

decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe
Size

841KB
MD5

ab2dfb698064ac25851a476950c6a9c3
SHA1

9cae4957454e0ce9be9436938c04d9d83238c120
SHA256

23f126565cbc87f7f1e0dca89fd37851d637946877e7607d5c1ece77ce628f80
SHA512

749e3d3f38babf079e6bc008cd12c6e544892d308f3d35f04ffdd5dd347f7c06b2e008f3b6ce6630571143c4af848be8edc8038b671a57d7f2a11e27b531d386
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCnFcU7V4k6+/Xs:7JZoQrbTFZY1iaCnmU7x6Gs

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1400-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1400-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/676-21-0x0000000000570000-0x000000000059F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

decontare facturi pentru plata 12 noiembrie 2024.xlsx.exesvchost.exeWWAHost.exe

description	pid	Process	procid_target
PID 4852 set thread context of 1400	4852	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe	86
PID 1400 set thread context of 3624	1400	svchost.exe	56
PID 676 set thread context of 3624	676	WWAHost.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

Processes:

WWAHost.execmd.exedecontare facturi pentru plata 12 noiembrie 2024.xlsx.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WWAHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exeWWAHost.exe

pid	Process
1400	svchost.exe
1400	svchost.exe
1400	svchost.exe
1400	svchost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe
676	WWAHost.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

decontare facturi pentru plata 12 noiembrie 2024.xlsx.exesvchost.exeWWAHost.exe

pid	Process
4852	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe
1400	svchost.exe
1400	svchost.exe
1400	svchost.exe
676	WWAHost.exe
676	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

svchost.exeWWAHost.exeExplorer.EXE

description	pid	Process
Token: SeDebugPrivilege	1400	svchost.exe
Token: SeDebugPrivilege	676	WWAHost.exe
Token: SeShutdownPrivilege	3624	Explorer.EXE
Token: SeCreatePagefilePrivilege	3624	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3624	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

decontare facturi pentru plata 12 noiembrie 2024.xlsx.exeExplorer.EXEWWAHost.exe

description	pid	Process	procid_target
PID 4852 wrote to memory of 1400	4852	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe	86
PID 4852 wrote to memory of 1400	4852	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe	86
PID 4852 wrote to memory of 1400	4852	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe	86
PID 4852 wrote to memory of 1400	4852	decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe	86
PID 3624 wrote to memory of 676	3624	Explorer.EXE	87
PID 3624 wrote to memory of 676	3624	Explorer.EXE	87
PID 3624 wrote to memory of 676	3624	Explorer.EXE	87
PID 676 wrote to memory of 5020	676	WWAHost.exe	93
PID 676 wrote to memory of 5020	676	WWAHost.exe	93
PID 676 wrote to memory of 5020	676	WWAHost.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3624
- C:\Users\Admin\AppData\Local\Temp\decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe
  "C:\Users\Admin\AppData\Local\Temp\decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4852
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\decontare facturi pentru plata 12 noiembrie 2024.xlsx.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1400
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.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:676
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5020

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/676-20-0x00000000009D0000-0x0000000000AAC000-memory.dmp

Filesize
880KB

Download
memory/676-21-0x0000000000570000-0x000000000059F000-memory.dmp

Filesize
188KB

Download
memory/676-18-0x00000000009D0000-0x0000000000AAC000-memory.dmp

Filesize
880KB

Download
memory/1400-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1400-13-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/1400-16-0x00000000016F0000-0x0000000001704000-memory.dmp

Filesize
80KB

Download
memory/1400-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3624-17-0x0000000008250000-0x00000000083EF000-memory.dmp

Filesize
1.6MB

Download
memory/3624-22-0x0000000008250000-0x00000000083EF000-memory.dmp

Filesize
1.6MB

Download
memory/3624-26-0x0000000008A90000-0x0000000008BE8000-memory.dmp

Filesize
1.3MB

Download
memory/3624-27-0x0000000008A90000-0x0000000008BE8000-memory.dmp

Filesize
1.3MB

Download
memory/3624-29-0x0000000008A90000-0x0000000008BE8000-memory.dmp

Filesize
1.3MB

Download
memory/4852-11-0x0000000004080000-0x0000000004280000-memory.dmp

Filesize
2.0MB

Download