formbook | bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09

Analysis

max time kernel
146s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 04:59

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General

Target

bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe
Size

1.1MB
MD5

b533b0782f2297c5c18532e25e37078c
SHA1

09e68604db3642bb80a6899419fbe71e69022bac
SHA256

bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09
SHA512

e61dc574dde6a865a9766286c633c0190a3a748fdd478be26f3e29f4ca32e26ec64f2de585691b9e4c80a5c092db820b89d3bb4c38833f2695d028dea870b338
SSDEEP

24576:7tb20pkaCqT5TBWgNQ7aTq2WKSeKUX6A:4Vg5tQ7aTE1eX5

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/1272-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1272-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1272-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3648-22-0x0000000001200000-0x000000000122F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 1272	2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe	82
PID 1272 set thread context of 3424	1272	svchost.exe	56
PID 1272 set thread context of 3424	1272	svchost.exe	56
PID 3648 set thread context of 3424	3648	svchost.exe	56

System Location Discovery: System Language Discovery 1 TTPs 4 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	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1272	svchost.exe
1272	svchost.exe
1272	svchost.exe
1272	svchost.exe
1272	svchost.exe
1272	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe
3648	svchost.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe
1272	svchost.exe
1272	svchost.exe
1272	svchost.exe
1272	svchost.exe
3648	svchost.exe
3648	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	svchost.exe
Token: SeDebugPrivilege	3648	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe
2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe
2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 1272	2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe	82
PID 2792 wrote to memory of 1272	2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe	82
PID 2792 wrote to memory of 1272	2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe	82
PID 2792 wrote to memory of 1272	2792	bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe	82
PID 1272 wrote to memory of 3648	1272	svchost.exe	94
PID 1272 wrote to memory of 3648	1272	svchost.exe	94
PID 1272 wrote to memory of 3648	1272	svchost.exe	94
PID 3648 wrote to memory of 2056	3648	svchost.exe	95
PID 3648 wrote to memory of 2056	3648	svchost.exe	95
PID 3648 wrote to memory of 2056	3648	svchost.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3424
- C:\Users\Admin\AppData\Local\Temp\bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe
  "C:\Users\Admin\AppData\Local\Temp\bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.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:2792
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\bdeb5a5c41b0c70f96ab569ed48501db813c5f93683254ab0980bfc46f53fc09.exe"
    3⤵
    - 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:1272
  - - C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      4⤵
      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:3648
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2056
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4788
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:836
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3436
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4448
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3932
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:852
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4244

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/1272-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1272-8-0x0000000000E00000-0x000000000114A000-memory.dmp

Filesize
3.3MB

Download
memory/1272-11-0x0000000000D60000-0x0000000000D74000-memory.dmp

Filesize
80KB

Download
memory/1272-15-0x0000000000DD0000-0x0000000000DE4000-memory.dmp

Filesize
80KB

Download
memory/1272-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1272-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-6-0x0000000001410000-0x0000000001810000-memory.dmp

Filesize
4.0MB

Download
memory/3424-12-0x0000000002F90000-0x0000000003059000-memory.dmp

Filesize
804KB

Download
memory/3424-16-0x0000000008BF0000-0x0000000008D99000-memory.dmp

Filesize
1.7MB

Download
memory/3424-17-0x0000000002F90000-0x0000000003059000-memory.dmp

Filesize
804KB

Download
memory/3424-21-0x0000000008BF0000-0x0000000008D99000-memory.dmp

Filesize
1.7MB

Download
memory/3424-25-0x0000000008DA0000-0x0000000008F26000-memory.dmp

Filesize
1.5MB

Download
memory/3424-26-0x0000000008DA0000-0x0000000008F26000-memory.dmp

Filesize
1.5MB

Download
memory/3424-28-0x0000000008DA0000-0x0000000008F26000-memory.dmp

Filesize
1.5MB

Download
memory/3648-20-0x00000000005C0000-0x00000000005CE000-memory.dmp

Filesize
56KB

Download
memory/3648-18-0x00000000005C0000-0x00000000005CE000-memory.dmp

Filesize
56KB

Download
memory/3648-22-0x0000000001200000-0x000000000122F000-memory.dmp

Filesize
188KB

Download