formbook | efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-01-2025 07:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe
Size

819KB
MD5

05bf21401fdd83ba54d1ad55f909e590
SHA1

47efbfdfcfe6a39499d1bd5bf0fe2a27ade6c0ff
SHA256

efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f
SHA512

99fab03cb018c20e2f647c318db6861798165891d2641f2dcb8fbc9e2bbe27eb6e1200bda8f6f1e92a97b4ca2c4c31f4c158ea82cd7ca755363932b9bd83b654
SSDEEP

12288:zpX2dGTyWXV7O7L5BDEYQfWusPTPzcbGfiwP+SepsWGrvGAGT:92MxO7JzcbGqwZepdGW

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 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3328-46-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3328-91-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4100-93-0x0000000000700000-0x000000000072F000-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
3144	powershell.exe
2112	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 3328 set thread context of 3524	3328	RegSvcs.exe	56
PID 3328 set thread context of 3524	3328	RegSvcs.exe	56
PID 4100 set thread context of 3524	4100	chkdsk.exe	56

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe
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	chkdsk.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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
1980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe
3144	powershell.exe
2112	powershell.exe
2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe
3328	RegSvcs.exe
3328	RegSvcs.exe
3328	RegSvcs.exe
3328	RegSvcs.exe
3144	powershell.exe
2112	powershell.exe
3328	RegSvcs.exe
3328	RegSvcs.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe
4100	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3328	RegSvcs.exe
3328	RegSvcs.exe
3328	RegSvcs.exe
3328	RegSvcs.exe
4100	chkdsk.exe
4100	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe
Token: SeDebugPrivilege	3144	powershell.exe
Token: SeDebugPrivilege	2112	powershell.exe
Token: SeDebugPrivilege	3328	RegSvcs.exe
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeDebugPrivilege	4100	chkdsk.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 3144	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	89
PID 2368 wrote to memory of 3144	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	89
PID 2368 wrote to memory of 3144	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	89
PID 2368 wrote to memory of 2112	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	91
PID 2368 wrote to memory of 2112	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	91
PID 2368 wrote to memory of 2112	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	91
PID 2368 wrote to memory of 1980	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	93
PID 2368 wrote to memory of 1980	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	93
PID 2368 wrote to memory of 1980	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	93
PID 2368 wrote to memory of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 2368 wrote to memory of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 2368 wrote to memory of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 2368 wrote to memory of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 2368 wrote to memory of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 2368 wrote to memory of 3328	2368	efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe	95
PID 3524 wrote to memory of 4100	3524	Explorer.EXE	96
PID 3524 wrote to memory of 4100	3524	Explorer.EXE	96
PID 3524 wrote to memory of 4100	3524	Explorer.EXE	96
PID 4100 wrote to memory of 2352	4100	chkdsk.exe	97
PID 4100 wrote to memory of 2352	4100	chkdsk.exe	97
PID 4100 wrote to memory of 2352	4100	chkdsk.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe
  "C:\Users\Admin\AppData\Local\Temp\efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.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:2368
- - 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\efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3144
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cvRSCwXQ.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2112
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cvRSCwXQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpACBB.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1980
- - 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:3328
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4100
- - 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:2352

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

Loading Replay Monitor...

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
faaa5db735dfbc6372d3a35695843ba4

SHA1
73591c98da97fb17adc0e8d8c1c0e6edc4933684

SHA256
f0aad36316fed928fbfa35d350a1a0414ca72d15ee643bc802866c54c28d1d57

SHA512
c5c730f24c8df8d9a968adfb19b102088fc449ee48328274100a931d18eb60e33f157df67e488bbd589b572a1ed8c467e6d0039f83a1265a7b5293baa2606694

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_shcz3zdq.tdf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
1KB

MD5
82f58cfee1cef1448567acbde720a199

SHA1
64c981e8876a01bd1989f42a2c0291b10c453de0

SHA256
fd022eb83b8698d61f92de94cb5f045f455ee4fc104df041cee8532742d262b8

SHA512
1bd890018209c8133c302bb926b2449852c44a54030a3bec3c52a8f9dd4f8329186640d034c50a290213086b9da6dc491c72b3f794260db073141b4a31bb4bde

Download Submit
memory/2112-90-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2112-45-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2112-33-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2112-19-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2112-67-0x0000000075520000-0x000000007556C000-memory.dmp

Filesize
304KB

Download
memory/2368-5-0x0000000002500000-0x000000000250A000-memory.dmp

Filesize
40KB

Download
memory/2368-10-0x0000000005D40000-0x0000000005DB8000-memory.dmp

Filesize
480KB

Download
memory/2368-9-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2368-8-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2368-7-0x0000000007330000-0x0000000007356000-memory.dmp

Filesize
152KB

Download
memory/2368-6-0x0000000007360000-0x00000000073FC000-memory.dmp

Filesize
624KB

Download
memory/2368-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2368-4-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2368-3-0x0000000007160000-0x00000000071F2000-memory.dmp

Filesize
584KB

Download
memory/2368-48-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2368-2-0x0000000007670000-0x0000000007C14000-memory.dmp

Filesize
5.6MB

Download
memory/2368-1-0x0000000000170000-0x0000000000242000-memory.dmp

Filesize
840KB

Download
memory/3144-34-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3144-77-0x0000000006F70000-0x0000000006F7A000-memory.dmp

Filesize
40KB

Download
memory/3144-21-0x0000000004D10000-0x0000000004D32000-memory.dmp

Filesize
136KB

Download
memory/3144-22-0x00000000054E0000-0x0000000005546000-memory.dmp

Filesize
408KB

Download
memory/3144-15-0x00000000022C0000-0x00000000022F6000-memory.dmp

Filesize
216KB

Download
memory/3144-23-0x0000000005550000-0x00000000055B6000-memory.dmp

Filesize
408KB

Download
memory/3144-50-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

Filesize
120KB

Download
memory/3144-51-0x00000000061A0000-0x00000000061EC000-memory.dmp

Filesize
304KB

Download
memory/3144-52-0x0000000006B80000-0x0000000006BB2000-memory.dmp

Filesize
200KB

Download
memory/3144-63-0x0000000006160000-0x000000000617E000-memory.dmp

Filesize
120KB

Download
memory/3144-53-0x0000000075520000-0x000000007556C000-memory.dmp

Filesize
304KB

Download
memory/3144-64-0x0000000006DD0000-0x0000000006E73000-memory.dmp

Filesize
652KB

Download
memory/3144-65-0x0000000007540000-0x0000000007BBA000-memory.dmp

Filesize
6.5MB

Download
memory/3144-66-0x0000000006F00000-0x0000000006F1A000-memory.dmp

Filesize
104KB

Download
memory/3144-18-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3144-35-0x00000000056E0000-0x0000000005A34000-memory.dmp

Filesize
3.3MB

Download
memory/3144-78-0x0000000007180000-0x0000000007216000-memory.dmp

Filesize
600KB

Download
memory/3144-79-0x0000000007100000-0x0000000007111000-memory.dmp

Filesize
68KB

Download
memory/3144-80-0x0000000007130000-0x000000000713E000-memory.dmp

Filesize
56KB

Download
memory/3144-81-0x0000000007140000-0x0000000007154000-memory.dmp

Filesize
80KB

Download
memory/3144-82-0x0000000007240000-0x000000000725A000-memory.dmp

Filesize
104KB

Download
memory/3144-83-0x0000000007220000-0x0000000007228000-memory.dmp

Filesize
32KB

Download
memory/3144-16-0x0000000004E00000-0x0000000005428000-memory.dmp

Filesize
6.2MB

Download
memory/3144-17-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3144-89-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3328-46-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3328-91-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3524-97-0x0000000008590000-0x0000000008696000-memory.dmp

Filesize
1.0MB

Download
memory/4100-92-0x00000000000D0000-0x00000000000DA000-memory.dmp

Filesize
40KB

Download
memory/4100-93-0x0000000000700000-0x000000000072F000-memory.dmp

Filesize
188KB

Download