formbook | 190df53d774c520a1ad8bd531f990aede256f9b85900e22823f04a7b07df4166

Analysis

max time kernel
146s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-01-2025 02:16

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General

Target

TKq18zZ3Rtcbhfd.exe
Size

690KB
MD5

40a0efae53cd30740fd47e5f79a46eae
SHA1

2ea4625d31a8c4fa8e6c9b3bc4abecc6341fe788
SHA256

58dfe85f084bedbc1861ed4afada8f0e284a70e10c84065cc6df13adc9fb45db
SHA512

0caabef7ce39f1d2fb4f21c7cf8f59da389babc1f590910ea85c8b5a4d28e40a572802ffdf55eef95d4c41999150a777b55825056b3b8d7bf744cb567fbee1e0
SSDEEP

12288:Qiv1uq3JfXyN9u9A0NAUFE/P37NfmAl12tZ9uLUxL7HNHJTs/m:RNuqfC/unmUQ7NpqLB

Score

10^/10

formbook a02d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a02d

Decoy

coplus.market

oofing-jobs-74429.bond

healchemists.xyz

oofcarpenternearme-jp.xyz

enewebsolutions.online

harepoint.legal

88977.club

omptables.xyz

eat-pumps-31610.bond

endown.graphics

amsexgirls.website

ovevibes.xyz

u-thiensu.online

yblinds.xyz

rumpchiefofstaff.store

erzog.fun

rrm.lat

agiclime.pro

agaviet59.shop

lbdoanhnhan.net

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/2776-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2668-28-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2168	powershell.exe
2836	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2540 set thread context of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2776 set thread context of 1192	2776	RegSvcs.exe	21
PID 2668 set thread context of 1192	2668	systray.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 6 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TKq18zZ3Rtcbhfd.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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2540	TKq18zZ3Rtcbhfd.exe
2836	powershell.exe
2168	powershell.exe
2776	RegSvcs.exe
2540	TKq18zZ3Rtcbhfd.exe
2776	RegSvcs.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe
2668	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2776	RegSvcs.exe
2776	RegSvcs.exe
2776	RegSvcs.exe
2668	systray.exe
2668	systray.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	TKq18zZ3Rtcbhfd.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2168	powershell.exe
Token: SeDebugPrivilege	2776	RegSvcs.exe
Token: SeDebugPrivilege	2668	systray.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2168	2540	TKq18zZ3Rtcbhfd.exe	31
PID 2540 wrote to memory of 2168	2540	TKq18zZ3Rtcbhfd.exe	31
PID 2540 wrote to memory of 2168	2540	TKq18zZ3Rtcbhfd.exe	31
PID 2540 wrote to memory of 2168	2540	TKq18zZ3Rtcbhfd.exe	31
PID 2540 wrote to memory of 2836	2540	TKq18zZ3Rtcbhfd.exe	33
PID 2540 wrote to memory of 2836	2540	TKq18zZ3Rtcbhfd.exe	33
PID 2540 wrote to memory of 2836	2540	TKq18zZ3Rtcbhfd.exe	33
PID 2540 wrote to memory of 2836	2540	TKq18zZ3Rtcbhfd.exe	33
PID 2540 wrote to memory of 2808	2540	TKq18zZ3Rtcbhfd.exe	34
PID 2540 wrote to memory of 2808	2540	TKq18zZ3Rtcbhfd.exe	34
PID 2540 wrote to memory of 2808	2540	TKq18zZ3Rtcbhfd.exe	34
PID 2540 wrote to memory of 2808	2540	TKq18zZ3Rtcbhfd.exe	34
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 2540 wrote to memory of 2776	2540	TKq18zZ3Rtcbhfd.exe	37
PID 1192 wrote to memory of 2668	1192	Explorer.EXE	38
PID 1192 wrote to memory of 2668	1192	Explorer.EXE	38
PID 1192 wrote to memory of 2668	1192	Explorer.EXE	38
PID 1192 wrote to memory of 2668	1192	Explorer.EXE	38
PID 2668 wrote to memory of 900	2668	systray.exe	39
PID 2668 wrote to memory of 900	2668	systray.exe	39
PID 2668 wrote to memory of 900	2668	systray.exe	39
PID 2668 wrote to memory of 900	2668	systray.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\TKq18zZ3Rtcbhfd.exe
  "C:\Users\Admin\AppData\Local\Temp\TKq18zZ3Rtcbhfd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2540
- - 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\TKq18zZ3Rtcbhfd.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2168
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ChQJmcO.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2836
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChQJmcO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1C7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2808
- - 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:2776
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2668
- - 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:900

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\tmpE1C7.tmp

Filesize
1KB

MD5
4c7dd4630f6fa0332d11974549c8e1a1

SHA1
367d3ecad748b410d3643c63ead1a279b663a1e8

SHA256
eb4e5c4c33b80fa5d4a50f50f8f20f351b1fb65baa386fb3c5992e59c5f4848c

SHA512
8cb38e26902f183c2533358d4883a70f0f4042f7717da23e547d8ab9f3e326535c95f550061e06969087a961342134237d7f16c8c86b2e35d02ae5d828f49198

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\QK6MTAATSJGE3ZEN2607.temp

Filesize
7KB

MD5
874c1623fac4114504fa4650e7634828

SHA1
1d3253c02d9bec2530cdbba3aacfbc2042d3a28b

SHA256
e658408d447399a9f3909545e3a7cdcdb74d75c3574057cb48cac6b3ba0a9d49

SHA512
fba110a3350e21ba14befff495fa17568de3b8a22ed1e9fb21af27c914d13c291699b5497b1b78ec4fbe659e02ad1a0b274cccebc174a7122646375b7db0bc7a

Download Submit
memory/2540-4-0x000000007419E000-0x000000007419F000-memory.dmp

Filesize
4KB

Download
memory/2540-26-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2540-0-0x000000007419E000-0x000000007419F000-memory.dmp

Filesize
4KB

Download
memory/2540-5-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2540-6-0x0000000005DD0000-0x0000000005E4A000-memory.dmp

Filesize
488KB

Download
memory/2540-2-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2540-1-0x0000000000040000-0x00000000000F4000-memory.dmp

Filesize
720KB

Download
memory/2540-3-0x0000000000460000-0x000000000047A000-memory.dmp

Filesize
104KB

Download
memory/2668-28-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2668-27-0x0000000000640000-0x0000000000645000-memory.dmp

Filesize
20KB

Download
memory/2776-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download