formbook | e003a0859dcb91f1fdd140589cb6ee184ac34465e1af935f7f5c262ae3a4d70c

Analysis

max time kernel
300s
max time network
272s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 13:44

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General

Target

eUJXFbdYlsElzgS.exe
Size

580KB
MD5

082d39cfd34b71fcbcd6fde04630a9da
SHA1

0158f6fc8b93a002d854eeea2a67fc1e6cae6781
SHA256

4b0172ec49e672667d9b9ce4ff5ea0365ce29118728adeda23e5c21e7e170ba6
SHA512

10b9f414c84e95acd51225e600cf8b36627832986cf01cb5864bf134755546cae5db24f86b60a9364214d140f7761670b7ee67819d7b0519e7de3f9173461fbe
SSDEEP

12288:8zJGCGrsE1JwH6lWGs6jwt4IRBFGJgoUo1ID7BPQ:8zMCYsE12HSWGWt42Gmm16B

Score

10^/10

formbook t18n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t18n

Decoy

tmusicoregon.net

atici.online

j7u7.xyz

iewunucierwuerwnziqi1.info

ruvabetgiris.website

acik.lat

obsk.top

sphaltpaving-ttp1-shd-us-2.shop

ispensarynearme.news

b3nd.bond

urelook.xyz

gearlpfbm.top

aconstructionjob.bond

killsnexis.info

oshon.xyz

ashabsxw.top

ussiatraiding.buzz

raipsehumus.homes

6ae23rx.forum

edar88vvip.shop

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/1076-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2652-21-0x0000000000080000-0x00000000000AF000-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
2784	powershell.exe

Deletes itself 1 IoCs

pid	Process
2820	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2208 set thread context of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 1076 set thread context of 1240	1076	eUJXFbdYlsElzgS.exe	21
PID 2652 set thread context of 1240	2652	NAPSTAT.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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eUJXFbdYlsElzgS.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
1076	eUJXFbdYlsElzgS.exe
1076	eUJXFbdYlsElzgS.exe
2784	powershell.exe
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1076	eUJXFbdYlsElzgS.exe
1076	eUJXFbdYlsElzgS.exe
1076	eUJXFbdYlsElzgS.exe
2652	NAPSTAT.EXE
2652	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1076	eUJXFbdYlsElzgS.exe
Token: SeDebugPrivilege	2784	powershell.exe
Token: SeDebugPrivilege	2652	NAPSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1240	Explorer.EXE
1240	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1240	Explorer.EXE
1240	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2784	2208	eUJXFbdYlsElzgS.exe	30
PID 2208 wrote to memory of 2784	2208	eUJXFbdYlsElzgS.exe	30
PID 2208 wrote to memory of 2784	2208	eUJXFbdYlsElzgS.exe	30
PID 2208 wrote to memory of 2784	2208	eUJXFbdYlsElzgS.exe	30
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 2208 wrote to memory of 1076	2208	eUJXFbdYlsElzgS.exe	32
PID 1240 wrote to memory of 2652	1240	Explorer.EXE	33
PID 1240 wrote to memory of 2652	1240	Explorer.EXE	33
PID 1240 wrote to memory of 2652	1240	Explorer.EXE	33
PID 1240 wrote to memory of 2652	1240	Explorer.EXE	33
PID 2652 wrote to memory of 2820	2652	NAPSTAT.EXE	34
PID 2652 wrote to memory of 2820	2652	NAPSTAT.EXE	34
PID 2652 wrote to memory of 2820	2652	NAPSTAT.EXE	34
PID 2652 wrote to memory of 2820	2652	NAPSTAT.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Users\Admin\AppData\Local\Temp\eUJXFbdYlsElzgS.exe
  "C:\Users\Admin\AppData\Local\Temp\eUJXFbdYlsElzgS.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\eUJXFbdYlsElzgS.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2784
- - C:\Users\Admin\AppData\Local\Temp\eUJXFbdYlsElzgS.exe
    "C:\Users\Admin\AppData\Local\Temp\eUJXFbdYlsElzgS.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1076
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.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:2652
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\eUJXFbdYlsElzgS.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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

memory/1076-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1076-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1076-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1076-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1240-26-0x0000000006AF0000-0x0000000006BE2000-memory.dmp

Filesize
968KB

Download
memory/2208-4-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2208-7-0x00000000047A0000-0x0000000004816000-memory.dmp

Filesize
472KB

Download
memory/2208-6-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2208-8-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2208-5-0x0000000000510000-0x0000000000522000-memory.dmp

Filesize
72KB

Download
memory/2208-0-0x000000007449E000-0x000000007449F000-memory.dmp

Filesize
4KB

Download
memory/2208-3-0x000000007449E000-0x000000007449F000-memory.dmp

Filesize
4KB

Download
memory/2208-2-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2208-17-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2208-1-0x0000000000E30000-0x0000000000EC8000-memory.dmp

Filesize
608KB

Download
memory/2652-20-0x0000000000910000-0x0000000000956000-memory.dmp

Filesize
280KB

Download
memory/2652-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download