formbook | 8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049

Analysis

max time kernel
145s
max time network
128s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19-01-2025 04:08

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General

Target

8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
Size

661KB
MD5

4b1b3a715305efece2e7c37c5346a719
SHA1

d4b0fd026b293bc0131706a49d73db072b0b136c
SHA256

8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049
SHA512

18c3eb1dc929b4c7143b2f6b9327b78e6c3cfbbff87216cabbe23de32985e694ba1bcdc5ae737e69472147a4d8d6475fdcd24ffdf4ad1357fef97fb5147335d7
SSDEEP

12288:M6YRxA4Y5lyA/BxSPCNiITWBlyZWuActY/V/5E0bblR+1Y7NyEFcePZCR:URo7Sy4uActY/VFT+EyMZCR

Score

10^/10

formbook 3nop discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

3nop

Decoy

subur88wap.sbs

tyai1.top

skillbeast.site

kcclassiccars.net

lghomes.net

eijanno.cyou

work-in-usa-60100.bond

268chill.store

bharatwin.biz

cakjitu01.xyz

misafert.xyz

hiretemp.net

lvekz-onearmed.top

amanda-manopo.info

seo-companies22.online

casinowalletth.net

maynrson.monster

bewizi.com

thedronetechhub.shop

car-insurance-93947.bond

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1936-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1916-24-0x0000000000080000-0x00000000000AF000-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
2932	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2092 set thread context of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 1936 set thread context of 1204	1936	RegSvcs.exe	21
PID 1916 set thread context of 1204	1916	NETSTAT.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	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
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	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1916	NETSTAT.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
1824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
1936	RegSvcs.exe
2932	powershell.exe
1936	RegSvcs.exe
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE
1916	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1936	RegSvcs.exe
1936	RegSvcs.exe
1936	RegSvcs.exe
1916	NETSTAT.EXE
1916	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
Token: SeDebugPrivilege	1936	RegSvcs.exe
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	1916	NETSTAT.EXE

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2932	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	30
PID 2092 wrote to memory of 2932	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	30
PID 2092 wrote to memory of 2932	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	30
PID 2092 wrote to memory of 2932	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	30
PID 2092 wrote to memory of 1824	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	32
PID 2092 wrote to memory of 1824	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	32
PID 2092 wrote to memory of 1824	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	32
PID 2092 wrote to memory of 1824	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	32
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 2692	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	34
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 2092 wrote to memory of 1936	2092	8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe	35
PID 1204 wrote to memory of 1916	1204	Explorer.EXE	36
PID 1204 wrote to memory of 1916	1204	Explorer.EXE	36
PID 1204 wrote to memory of 1916	1204	Explorer.EXE	36
PID 1204 wrote to memory of 1916	1204	Explorer.EXE	36
PID 1916 wrote to memory of 3032	1916	NETSTAT.EXE	37
PID 1916 wrote to memory of 3032	1916	NETSTAT.EXE	37
PID 1916 wrote to memory of 3032	1916	NETSTAT.EXE	37
PID 1916 wrote to memory of 3032	1916	NETSTAT.EXE	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe
  "C:\Users\Admin\AppData\Local\Temp\8389b3ecce08249b5d4ad5eede18ef1136f4acef3137fcd9fd4850082e090049.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tXKIoQjujENj.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2932
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tXKIoQjujENj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D9F.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1824
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:2692
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1936
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1916
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3032

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\tmp8D9F.tmp

Filesize
1KB

MD5
42f6ca2a566ff283cf4d84becdc18dce

SHA1
79323b5b8341584178864ae7fe399010c9dc8acf

SHA256
04ba8ccb6fb6753fd1304c94bf80e1bde437f26edcb6660464a5a7f4f1ce83a9

SHA512
a01a51fae0e67aab2711d7e42c098160588485c4b9e5df7c7f8e2d3055c20a201e2a38c328e631b7c38fdb20566f5f0f5d860659c758ac41058b09bfeab3934f

Download Submit
memory/1204-22-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1916-24-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1916-23-0x0000000000700000-0x0000000000709000-memory.dmp

Filesize
36KB

Download
memory/1936-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1936-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1936-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1936-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2092-4-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2092-6-0x0000000005CE0000-0x0000000005D5A000-memory.dmp

Filesize
488KB

Download
memory/2092-5-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2092-20-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-3-0x0000000001F70000-0x0000000001F8A000-memory.dmp

Filesize
104KB

Download
memory/2092-2-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-1-0x0000000000020000-0x00000000000CC000-memory.dmp

Filesize
688KB

Download