formbook | 9f17dfb2b539dbfeae4eff938a67da34bf07b6d9617c49963ec4b537449f7520

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31/07/2024, 07:35

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General

Target

RFQ31072024_August order_pdf.bat.exe
Size

637KB
MD5

f48f1b6145eb795061ee91642a07cfa4
SHA1

5d8ab68c809005ad6495b04e3fe11e306ee71cbd
SHA256

9f17dfb2b539dbfeae4eff938a67da34bf07b6d9617c49963ec4b537449f7520
SHA512

69164b98afc612343d1eebd1d98ae544b1954bbaacb9444ceccc16894027f89e5eb3b7b807f7e24eb3fe7e76a829d67d93642c767d40d88c6e1d2f9013ea2a44
SSDEEP

12288:8I4QpjndCej981lKV+qspbem0HFnOXKizT3i/q8re+JvvYnQckR:8InjdCaKocam0HFOa+SQe

Score

10^/10

formbook ss24 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ss24

Decoy

agingwellhc.com

unikbetanggur.autos

eb2024yl.top

ja380.xyz

thehalcyon.studio

maudsoogrim.com

esteler10.click

mewtcp.xyz

www-zjbf1.club

kucinglucu.online

lunwencheck.com

65597.photos

erbxeu358h.top

startable.online

yousend.xyz

csharksg.com

centricoatings.com

ntruhslearn.xyz

achabakra.xyz

zuntool.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2748-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2676-23-0x00000000000C0000-0x00000000000EF000-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
2144	powershell.exe

Deletes itself 1 IoCs

pid	Process
672	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1728 set thread context of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 2748 set thread context of 1204	2748	RFQ31072024_August order_pdf.bat.exe	21
PID 2676 set thread context of 1204	2676	cmmon32.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ31072024_August order_pdf.bat.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
2564	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2748	RFQ31072024_August order_pdf.bat.exe
2748	RFQ31072024_August order_pdf.bat.exe
2144	powershell.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe
2676	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2748	RFQ31072024_August order_pdf.bat.exe
2748	RFQ31072024_August order_pdf.bat.exe
2748	RFQ31072024_August order_pdf.bat.exe
2676	cmmon32.exe
2676	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2748	RFQ31072024_August order_pdf.bat.exe
Token: SeDebugPrivilege	2144	powershell.exe
Token: SeDebugPrivilege	2676	cmmon32.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2144	1728	RFQ31072024_August order_pdf.bat.exe	31
PID 1728 wrote to memory of 2144	1728	RFQ31072024_August order_pdf.bat.exe	31
PID 1728 wrote to memory of 2144	1728	RFQ31072024_August order_pdf.bat.exe	31
PID 1728 wrote to memory of 2144	1728	RFQ31072024_August order_pdf.bat.exe	31
PID 1728 wrote to memory of 2564	1728	RFQ31072024_August order_pdf.bat.exe	32
PID 1728 wrote to memory of 2564	1728	RFQ31072024_August order_pdf.bat.exe	32
PID 1728 wrote to memory of 2564	1728	RFQ31072024_August order_pdf.bat.exe	32
PID 1728 wrote to memory of 2564	1728	RFQ31072024_August order_pdf.bat.exe	32
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1728 wrote to memory of 2748	1728	RFQ31072024_August order_pdf.bat.exe	35
PID 1204 wrote to memory of 2676	1204	Explorer.EXE	50
PID 1204 wrote to memory of 2676	1204	Explorer.EXE	50
PID 1204 wrote to memory of 2676	1204	Explorer.EXE	50
PID 1204 wrote to memory of 2676	1204	Explorer.EXE	50
PID 2676 wrote to memory of 672	2676	cmmon32.exe	51
PID 2676 wrote to memory of 672	2676	cmmon32.exe	51
PID 2676 wrote to memory of 672	2676	cmmon32.exe	51
PID 2676 wrote to memory of 672	2676	cmmon32.exe	51

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\RFQ31072024_August order_pdf.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ31072024_August order_pdf.bat.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WwRzxUm.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2144
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WwRzxUm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF20C.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2564
- - C:\Users\Admin\AppData\Local\Temp\RFQ31072024_August order_pdf.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ31072024_August order_pdf.bat.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2748
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2640
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2792
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2692
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2848
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2628
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1712
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2764
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2660
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2712
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2604
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2608
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2616
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2624
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2652
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:2676
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ31072024_August order_pdf.bat.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:672

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF20C.tmp

Filesize
1KB

MD5
4bbf539c1add3084e4c474af7c8a8af0

SHA1
00dbb0dc6355cd0d94c77265d77ab3f72b899e65

SHA256
c2a13ad3a2f432b07e64ee65c2a5c83e565413af35ef25fc6d21364130403aec

SHA512
1916aa46435a636ed4e5ad8e5b4fea7a0c87d0abfe1b1fa8832a4e025c12f400593323ab66c85032b5042dc659c1831a3ca5ef14bf21e54f730fac2126cb0e33

Download Submit
memory/1204-24-0x0000000004150000-0x0000000004350000-memory.dmp

Filesize
2.0MB

Download
memory/1204-21-0x0000000003CE0000-0x0000000003DE0000-memory.dmp

Filesize
1024KB

Download
memory/1728-4-0x0000000000610000-0x000000000061E000-memory.dmp

Filesize
56KB

Download
memory/1728-0-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/1728-5-0x00000000048F0000-0x0000000004966000-memory.dmp

Filesize
472KB

Download
memory/1728-3-0x00000000005F0000-0x0000000000606000-memory.dmp

Filesize
88KB

Download
memory/1728-19-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/1728-2-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/1728-1-0x0000000000EF0000-0x0000000000F8E000-memory.dmp

Filesize
632KB

Download
memory/2676-22-0x0000000000C90000-0x0000000000C9D000-memory.dmp

Filesize
52KB

Download
memory/2676-23-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2748-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download