formbook | 58dfe85f084bedbc1861ed4afada8f0e284a70e10c84065cc6df13adc9fb45db

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 09:05

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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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4344-26-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4344-91-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4344-93-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1236-95-0x00000000012A0000-0x00000000012CF000-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
2132	powershell.exe
1008	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	TKq18zZ3Rtcbhfd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4508 set thread context of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 4344 set thread context of 3408	4344	RegSvcs.exe	55
PID 4344 set thread context of 3408	4344	RegSvcs.exe	55
PID 1236 set thread context of 3408	1236	raserver.exe	55

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	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
4276	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4508	TKq18zZ3Rtcbhfd.exe
1008	powershell.exe
2132	powershell.exe
4508	TKq18zZ3Rtcbhfd.exe
4344	RegSvcs.exe
4344	RegSvcs.exe
4344	RegSvcs.exe
4344	RegSvcs.exe
1008	powershell.exe
2132	powershell.exe
4344	RegSvcs.exe
4344	RegSvcs.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe
1236	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4344	RegSvcs.exe
4344	RegSvcs.exe
4344	RegSvcs.exe
4344	RegSvcs.exe
1236	raserver.exe
1236	raserver.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4508	TKq18zZ3Rtcbhfd.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	4344	RegSvcs.exe
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeDebugPrivilege	1236	raserver.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 1008	4508	TKq18zZ3Rtcbhfd.exe	87
PID 4508 wrote to memory of 1008	4508	TKq18zZ3Rtcbhfd.exe	87
PID 4508 wrote to memory of 1008	4508	TKq18zZ3Rtcbhfd.exe	87
PID 4508 wrote to memory of 2132	4508	TKq18zZ3Rtcbhfd.exe	89
PID 4508 wrote to memory of 2132	4508	TKq18zZ3Rtcbhfd.exe	89
PID 4508 wrote to memory of 2132	4508	TKq18zZ3Rtcbhfd.exe	89
PID 4508 wrote to memory of 4276	4508	TKq18zZ3Rtcbhfd.exe	91
PID 4508 wrote to memory of 4276	4508	TKq18zZ3Rtcbhfd.exe	91
PID 4508 wrote to memory of 4276	4508	TKq18zZ3Rtcbhfd.exe	91
PID 4508 wrote to memory of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 4508 wrote to memory of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 4508 wrote to memory of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 4508 wrote to memory of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 4508 wrote to memory of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 4508 wrote to memory of 4344	4508	TKq18zZ3Rtcbhfd.exe	93
PID 3408 wrote to memory of 1236	3408	Explorer.EXE	96
PID 3408 wrote to memory of 1236	3408	Explorer.EXE	96
PID 3408 wrote to memory of 1236	3408	Explorer.EXE	96
PID 1236 wrote to memory of 2208	1236	raserver.exe	97
PID 1236 wrote to memory of 2208	1236	raserver.exe	97
PID 1236 wrote to memory of 2208	1236	raserver.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Users\Admin\AppData\Local\Temp\TKq18zZ3Rtcbhfd.exe
  "C:\Users\Admin\AppData\Local\Temp\TKq18zZ3Rtcbhfd.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4508
- - 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:1008
- - 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:2132
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChQJmcO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB873.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4276
- - 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:4344
- 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:1236
- - 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:2208

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

Query Registry

T1012

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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
a097b03657f7a706ed14a88b9bb84ce4

SHA1
a16f675cb40d383677bd7b91f6782c660319090d

SHA256
39a5f48fc15c82fcfc6321bc81ac13de2b6e946e7accb81088c5cca5c33794b8

SHA512
52c45b76871c872156ce28c733311f4c89be81d5df9246acd1d1b741f8789af86b2ae394f5804c43c4c0eea35a423ccc5ae92a1c0d1221dd0983880277ecc480

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vc0ucujn.svh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB873.tmp

Filesize
1KB

MD5
ddf790f1bfd33eecebea4ea5c51f9545

SHA1
e36d4522ee1c412e1b736cc5cca9824dc1479eec

SHA256
84d4405247c8a95ae4978a8438974adad68b1d8525793c37f26a959b916820e5

SHA512
b129551c1a0d9b9e2113410e5f27625ead8cd20a89fa7da52ebbcb1c11bda1763747b3f22e355a32a17036e5ffcd4e567e1c775549672e3f87f160538ba51ffd

Download Submit
memory/1008-50-0x0000000006540000-0x000000000655E000-memory.dmp

Filesize
120KB

Download
memory/1008-18-0x0000000005760000-0x0000000005D88000-memory.dmp

Filesize
6.2MB

Download
memory/1008-81-0x0000000007AB0000-0x0000000007AC4000-memory.dmp

Filesize
80KB

Download
memory/1008-37-0x0000000006050000-0x00000000063A4000-memory.dmp

Filesize
3.3MB

Download
memory/1008-22-0x0000000005590000-0x00000000055B2000-memory.dmp

Filesize
136KB

Download
memory/1008-65-0x0000000075AA0000-0x0000000075AEC000-memory.dmp

Filesize
304KB

Download
memory/1008-82-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

Filesize
104KB

Download
memory/1008-16-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1008-15-0x0000000002C10000-0x0000000002C46000-memory.dmp

Filesize
216KB

Download
memory/1008-51-0x00000000065E0000-0x000000000662C000-memory.dmp

Filesize
304KB

Download
memory/1008-17-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1008-19-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1008-24-0x0000000005D90000-0x0000000005DF6000-memory.dmp

Filesize
408KB

Download
memory/1008-25-0x0000000005E00000-0x0000000005E66000-memory.dmp

Filesize
408KB

Download
memory/1008-90-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1236-92-0x0000000000FD0000-0x0000000000FEF000-memory.dmp

Filesize
124KB

Download
memory/1236-94-0x0000000000FD0000-0x0000000000FEF000-memory.dmp

Filesize
124KB

Download
memory/1236-95-0x00000000012A0000-0x00000000012CF000-memory.dmp

Filesize
188KB

Download
memory/2132-52-0x0000000007870000-0x00000000078A2000-memory.dmp

Filesize
200KB

Download
memory/2132-64-0x0000000007AE0000-0x0000000007B83000-memory.dmp

Filesize
652KB

Download
memory/2132-36-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2132-80-0x0000000007E40000-0x0000000007E4E000-memory.dmp

Filesize
56KB

Download
memory/2132-89-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2132-23-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2132-21-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2132-83-0x0000000007F30000-0x0000000007F38000-memory.dmp

Filesize
32KB

Download
memory/2132-63-0x0000000007AB0000-0x0000000007ACE000-memory.dmp

Filesize
120KB

Download
memory/2132-79-0x0000000007E10000-0x0000000007E21000-memory.dmp

Filesize
68KB

Download
memory/2132-53-0x0000000075AA0000-0x0000000075AEC000-memory.dmp

Filesize
304KB

Download
memory/2132-78-0x0000000007E90000-0x0000000007F26000-memory.dmp

Filesize
600KB

Download
memory/2132-76-0x0000000007C00000-0x0000000007C1A000-memory.dmp

Filesize
104KB

Download
memory/2132-75-0x00000000082B0000-0x000000000892A000-memory.dmp

Filesize
6.5MB

Download
memory/2132-77-0x0000000007C80000-0x0000000007C8A000-memory.dmp

Filesize
40KB

Download
memory/3408-99-0x0000000007A50000-0x0000000007AFF000-memory.dmp

Filesize
700KB

Download
memory/4344-93-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4344-26-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4344-91-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4508-4-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/4508-10-0x0000000007CF0000-0x0000000007D6A000-memory.dmp

Filesize
488KB

Download
memory/4508-2-0x0000000005640000-0x0000000005BE4000-memory.dmp

Filesize
5.6MB

Download
memory/4508-1-0x0000000000610000-0x00000000006C4000-memory.dmp

Filesize
720KB

Download
memory/4508-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/4508-39-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/4508-3-0x0000000005130000-0x00000000051C2000-memory.dmp

Filesize
584KB

Download
memory/4508-5-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/4508-9-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/4508-8-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/4508-7-0x0000000005610000-0x000000000562A000-memory.dmp

Filesize
104KB

Download
memory/4508-6-0x0000000005370000-0x000000000540C000-memory.dmp

Filesize
624KB

Download