formbook | 067e91a5d9becdce83fd29264da0ba1b86adc18a317ee26dc2da74b31da16d9e

Analysis

max time kernel
148s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 12:26

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General

Target

PcedKZADlOmB8Ux.exe
Size

592KB
MD5

a796e201c6de52790bf473c385efb84d
SHA1

5eea79136a8a337ab43a88d21e55f92b2db74718
SHA256

dc7ebbb50daeb8d518dc37a89775ffd1062b0b40014afa69ff2195370fb2f30d
SHA512

74a979c90fe4d650f89b379fdb18a7e8003d8bc6b22bf3d36de4b57a6d6c7488eb85b476243550d4360e22886741332c2462b99bdf50a00040a048094fd4d89a
SSDEEP

12288:S1xTx3j5DTx7EXuE331INsSB9HsP5A0cClmkDt1pDttlp9i72l:qHFkuK32ftW5A0cEm0ZFkE

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.online

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2336-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2336-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2336-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2216-26-0x0000000000870000-0x000000000089F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3872 set thread context of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 2336 set thread context of 3380	2336	PcedKZADlOmB8Ux.exe	56
PID 2336 set thread context of 3380	2336	PcedKZADlOmB8Ux.exe	56
PID 2216 set thread context of 3380	2216	chkdsk.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PcedKZADlOmB8Ux.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
3872	PcedKZADlOmB8Ux.exe
3872	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe
2216	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2336	PcedKZADlOmB8Ux.exe
2216	chkdsk.exe
2216	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3872	PcedKZADlOmB8Ux.exe
Token: SeDebugPrivilege	2336	PcedKZADlOmB8Ux.exe
Token: SeDebugPrivilege	2216	chkdsk.exe
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3380	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3872 wrote to memory of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 3872 wrote to memory of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 3872 wrote to memory of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 3872 wrote to memory of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 3872 wrote to memory of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 3872 wrote to memory of 2336	3872	PcedKZADlOmB8Ux.exe	93
PID 3380 wrote to memory of 2216	3380	Explorer.EXE	96
PID 3380 wrote to memory of 2216	3380	Explorer.EXE	96
PID 3380 wrote to memory of 2216	3380	Explorer.EXE	96
PID 2216 wrote to memory of 4336	2216	chkdsk.exe	97
PID 2216 wrote to memory of 4336	2216	chkdsk.exe	97
PID 2216 wrote to memory of 4336	2216	chkdsk.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\PcedKZADlOmB8Ux.exe
  "C:\Users\Admin\AppData\Local\Temp\PcedKZADlOmB8Ux.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\Users\Admin\AppData\Local\Temp\PcedKZADlOmB8Ux.exe
    "C:\Users\Admin\AppData\Local\Temp\PcedKZADlOmB8Ux.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2336
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PcedKZADlOmB8Ux.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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/2216-24-0x0000000000980000-0x000000000098A000-memory.dmp

Filesize
40KB

Download
memory/2216-26-0x0000000000870000-0x000000000089F000-memory.dmp

Filesize
188KB

Download
memory/2216-25-0x0000000000980000-0x000000000098A000-memory.dmp

Filesize
40KB

Download
memory/2336-17-0x0000000000C90000-0x0000000000CA4000-memory.dmp

Filesize
80KB

Download
memory/2336-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2336-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2336-21-0x00000000010F0000-0x0000000001104000-memory.dmp

Filesize
80KB

Download
memory/2336-14-0x0000000001120000-0x000000000146A000-memory.dmp

Filesize
3.3MB

Download
memory/2336-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3380-18-0x00000000088A0000-0x0000000008A25000-memory.dmp

Filesize
1.5MB

Download
memory/3380-33-0x00000000083F0000-0x00000000084F7000-memory.dmp

Filesize
1.0MB

Download
memory/3380-32-0x00000000083F0000-0x00000000084F7000-memory.dmp

Filesize
1.0MB

Download
memory/3380-30-0x00000000083F0000-0x00000000084F7000-memory.dmp

Filesize
1.0MB

Download
memory/3380-27-0x0000000002C90000-0x0000000002D5C000-memory.dmp

Filesize
816KB

Download
memory/3380-23-0x00000000088A0000-0x0000000008A25000-memory.dmp

Filesize
1.5MB

Download
memory/3380-22-0x0000000002C90000-0x0000000002D5C000-memory.dmp

Filesize
816KB

Download
memory/3872-10-0x0000000009F50000-0x0000000009FEC000-memory.dmp

Filesize
624KB

Download
memory/3872-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3872-13-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3872-4-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3872-9-0x0000000005550000-0x00000000055C6000-memory.dmp

Filesize
472KB

Download
memory/3872-3-0x0000000005010000-0x00000000050A2000-memory.dmp

Filesize
584KB

Download
memory/3872-2-0x00000000055C0000-0x0000000005B64000-memory.dmp

Filesize
5.6MB

Download
memory/3872-1-0x0000000000540000-0x00000000005DA000-memory.dmp

Filesize
616KB

Download
memory/3872-8-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3872-7-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3872-6-0x0000000005250000-0x0000000005260000-memory.dmp

Filesize
64KB

Download
memory/3872-5-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download