formbook | 44ab353624b9e867ae31a0523437ed8e321f361d248b471c15bd2902255280f3

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 06:32

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General

Target

z8eokahasflcrscooplasb.exe
Size

651KB
MD5

1660c33123052f15e4e63891f23ddd1e
SHA1

3b93eb0499260f494066d6a28f1238c1c440b04f
SHA256

44ab353624b9e867ae31a0523437ed8e321f361d248b471c15bd2902255280f3
SHA512

6c55d8bcfc60d513ae59cae83eb0ec0ee4b740dd0305664f3997fd9758104e79238d8f9304345de94c9b76ed8c6fd03f8e66ab72c9f49d55d8a18b5388b58351
SSDEEP

12288:JMRkVqoYve4eWCRO5W9Se/DETPCvTtQdH41lIaPLLrR:eRkVPP49Ip4ebELCvJQx45V

Score

10^/10

formbook dn13 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn13

Decoy

5q53s.top

f9813.top

ysticsmoke.net

ignorysingeysquints.cfd

yncsignature.live

svp-their.xyz

outya.xyz

wlkflwef3sf2wf.top

etterjugfetkaril.cfd

p9eh2s99b5.top

400108iqlnnqi219.top

ynsu-condition.xyz

ndividual-bfiaen.xyz

anceibizamagazine.net

itrussips.live

orkcubefood.xyz

lindsandfurnishings.shop

ajwmid.top

pigramescentfeatous.shop

mbvcv56789.click

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

resource	yara_rule
behavioral1/memory/2876-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2876-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2460-25-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2780	powershell.exe

Deletes itself 1 IoCs

pid	Process
2204	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 272 set thread context of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 2876 set thread context of 1196	2876	z8eokahasflcrscooplasb.exe	21
PID 2876 set thread context of 1196	2876	z8eokahasflcrscooplasb.exe	21
PID 2460 set thread context of 1196	2460	raserver.exe	21

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 5 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	z8eokahasflcrscooplasb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
272	z8eokahasflcrscooplasb.exe
272	z8eokahasflcrscooplasb.exe
272	z8eokahasflcrscooplasb.exe
272	z8eokahasflcrscooplasb.exe
272	z8eokahasflcrscooplasb.exe
272	z8eokahasflcrscooplasb.exe
272	z8eokahasflcrscooplasb.exe
2876	z8eokahasflcrscooplasb.exe
2876	z8eokahasflcrscooplasb.exe
2780	powershell.exe
2876	z8eokahasflcrscooplasb.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe
2460	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2876	z8eokahasflcrscooplasb.exe
2876	z8eokahasflcrscooplasb.exe
2876	z8eokahasflcrscooplasb.exe
2876	z8eokahasflcrscooplasb.exe
2460	raserver.exe
2460	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	272	z8eokahasflcrscooplasb.exe
Token: SeDebugPrivilege	2876	z8eokahasflcrscooplasb.exe
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	2460	raserver.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 272 wrote to memory of 2780	272	z8eokahasflcrscooplasb.exe	31
PID 272 wrote to memory of 2780	272	z8eokahasflcrscooplasb.exe	31
PID 272 wrote to memory of 2780	272	z8eokahasflcrscooplasb.exe	31
PID 272 wrote to memory of 2780	272	z8eokahasflcrscooplasb.exe	31
PID 272 wrote to memory of 2920	272	z8eokahasflcrscooplasb.exe	33
PID 272 wrote to memory of 2920	272	z8eokahasflcrscooplasb.exe	33
PID 272 wrote to memory of 2920	272	z8eokahasflcrscooplasb.exe	33
PID 272 wrote to memory of 2920	272	z8eokahasflcrscooplasb.exe	33
PID 272 wrote to memory of 2928	272	z8eokahasflcrscooplasb.exe	35
PID 272 wrote to memory of 2928	272	z8eokahasflcrscooplasb.exe	35
PID 272 wrote to memory of 2928	272	z8eokahasflcrscooplasb.exe	35
PID 272 wrote to memory of 2928	272	z8eokahasflcrscooplasb.exe	35
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 272 wrote to memory of 2876	272	z8eokahasflcrscooplasb.exe	36
PID 1196 wrote to memory of 2460	1196	Explorer.EXE	37
PID 1196 wrote to memory of 2460	1196	Explorer.EXE	37
PID 1196 wrote to memory of 2460	1196	Explorer.EXE	37
PID 1196 wrote to memory of 2460	1196	Explorer.EXE	37
PID 2460 wrote to memory of 2204	2460	raserver.exe	38
PID 2460 wrote to memory of 2204	2460	raserver.exe	38
PID 2460 wrote to memory of 2204	2460	raserver.exe	38
PID 2460 wrote to memory of 2204	2460	raserver.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe
  "C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:272
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hmlPTospxjGJ.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2780
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hmlPTospxjGJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2AD8.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2920
- - C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe
    "C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe"
    3⤵
    PID:2928
- - C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe
    "C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2876
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2460
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\z8eokahasflcrscooplasb.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2AD8.tmp

Filesize
1KB

MD5
089da082a0e5d7dfcb16d26afa7e32ba

SHA1
bd117650498c21b7878e95705d2ff52a66d3d80d

SHA256
ac31acffc7eaa5857edabee450ccbf89563fded89f53d138dea5d058ebd2af1e

SHA512
77c636f27dfb976753cc86768fb21dd38682cf6da7e6e49b49e37811123df4b90a82fdac9cce4c85fcba20793c55ebbc3e70b95c99f9ab83d246cf6c45be6abe

Download Submit
memory/272-20-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/272-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/272-3-0x0000000001ED0000-0x0000000001EEE000-memory.dmp

Filesize
120KB

Download
memory/272-4-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/272-6-0x0000000000550000-0x00000000005C6000-memory.dmp

Filesize
472KB

Download
memory/272-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/272-1-0x00000000002C0000-0x0000000000368000-memory.dmp

Filesize
672KB

Download
memory/272-5-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1196-23-0x00000000067B0000-0x00000000068D0000-memory.dmp

Filesize
1.1MB

Download
memory/2460-25-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2460-24-0x0000000000D90000-0x0000000000DAC000-memory.dmp

Filesize
112KB

Download
memory/2876-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download