formbook | 339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97

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
15-01-2025 07:39

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General

Target

Bank CertificateFile00.exe
Size

742KB
MD5

318b9fba04abf5010446161aed881cc2
SHA1

996a0ddc988e5f64537c37c68646efb2d8dacc4c
SHA256

339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97
SHA512

b84ecef8d7eab0b4c21520046fb92a242f23e9069480482b81871f327a5173adbbc0cdd2ba2ede1ec3ecdb33d477c7f5c978d00d2c2bf05abd89cb04081af9c6
SSDEEP

12288:VQoJNhQ/cWS7stsLbolyisOq+BGJpqp5VKr6FAr0trGsVagoW:V3JN+UVsa/olrBGCDVa6FAqrGWe

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
behavioral1/memory/2856-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2856-27-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/680-29-0x0000000000080000-0x00000000000AF000-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
2776	powershell.exe
2832	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 2856	1752	Bank CertificateFile00.exe	37
PID 2856 set thread context of 1272	2856	RegSvcs.exe	21
PID 2856 set thread context of 1272	2856	RegSvcs.exe	21
PID 680 set thread context of 1272	680	msdt.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bank CertificateFile00.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	msdt.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
2372	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1752	Bank CertificateFile00.exe
2832	powershell.exe
2776	powershell.exe
2856	RegSvcs.exe
1752	Bank CertificateFile00.exe
2856	RegSvcs.exe
2856	RegSvcs.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe
680	msdt.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2856	RegSvcs.exe
2856	RegSvcs.exe
2856	RegSvcs.exe
2856	RegSvcs.exe
680	msdt.exe
680	msdt.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	Bank CertificateFile00.exe
Token: SeDebugPrivilege	2832	powershell.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	2856	RegSvcs.exe
Token: SeDebugPrivilege	680	msdt.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2776	1752	Bank CertificateFile00.exe	31
PID 1752 wrote to memory of 2776	1752	Bank CertificateFile00.exe	31
PID 1752 wrote to memory of 2776	1752	Bank CertificateFile00.exe	31
PID 1752 wrote to memory of 2776	1752	Bank CertificateFile00.exe	31
PID 1752 wrote to memory of 2832	1752	Bank CertificateFile00.exe	33
PID 1752 wrote to memory of 2832	1752	Bank CertificateFile00.exe	33
PID 1752 wrote to memory of 2832	1752	Bank CertificateFile00.exe	33
PID 1752 wrote to memory of 2832	1752	Bank CertificateFile00.exe	33
PID 1752 wrote to memory of 2372	1752	Bank CertificateFile00.exe	35
PID 1752 wrote to memory of 2372	1752	Bank CertificateFile00.exe	35
PID 1752 wrote to memory of 2372	1752	Bank CertificateFile00.exe	35
PID 1752 wrote to memory of 2372	1752	Bank CertificateFile00.exe	35
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1752 wrote to memory of 2856	1752	Bank CertificateFile00.exe	37
PID 1272 wrote to memory of 680	1272	Explorer.EXE	38
PID 1272 wrote to memory of 680	1272	Explorer.EXE	38
PID 1272 wrote to memory of 680	1272	Explorer.EXE	38
PID 1272 wrote to memory of 680	1272	Explorer.EXE	38
PID 680 wrote to memory of 1228	680	msdt.exe	39
PID 680 wrote to memory of 1228	680	msdt.exe	39
PID 680 wrote to memory of 1228	680	msdt.exe	39
PID 680 wrote to memory of 1228	680	msdt.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\AppData\Local\Temp\Bank CertificateFile00.exe
  "C:\Users\Admin\AppData\Local\Temp\Bank CertificateFile00.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1752
- - 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\Bank CertificateFile00.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2776
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iWxVkVDQYvd.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iWxVkVDQYvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE550.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2372
- - 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:2856
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:680
- - 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:1228

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\tmpE550.tmp

Filesize
1KB

MD5
26764dc54c05c3fd78a5c6175ca06b02

SHA1
664ffc17bce3baa0b8c177f06ce4cdc7a27c03dd

SHA256
e6cd2e4301e5838bdb2b9ac52b5105f5aa44bdb7b94872f87c94dcd1ffe32dda

SHA512
5e1063420be731565fbe753e4aa01f5ecd2f83ef7551c2eec7f1e8c5cc5845e1c4d3fbf9780dcdf326f8ed235902b235745a2cdd9961b1121723308f36acc71a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
ef2be4edaf42d787f2ac85738fe110f1

SHA1
82fa7196154fc84b549d4948217eb29d68c7c563

SHA256
5e0dde149f4557028f4b9c063c1d5164728ba89f99cbb5d7dc937f4e2dac4994

SHA512
d40b4f5d262eb9af7b7cc95af58dda60fedda53fe1d66865a16a9f59285432c37545565f468dda6c68fdd1a24896ea73366dce70c7442a7bf9c0ac7927fbed0a

Download Submit
memory/680-29-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/680-28-0x0000000000430000-0x0000000000524000-memory.dmp

Filesize
976KB

Download
memory/1752-4-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/1752-5-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-6-0x0000000000610000-0x0000000000688000-memory.dmp

Filesize
480KB

Download
memory/1752-0-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/1752-3-0x0000000000520000-0x0000000000546000-memory.dmp

Filesize
152KB

Download
memory/1752-26-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-2-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-1-0x0000000000230000-0x00000000002F0000-memory.dmp

Filesize
768KB

Download
memory/2856-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-27-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download