formbook | efd65e32b20afe5bd0541a097bb5f4e7f741875b2c65cab7f08c04a645ccdf6f

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
16-01-2025 08:18

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General

Target

Bankcerticate223pdf.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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2612-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1580-28-0x00000000000C0000-0x00000000000EF000-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
2796	powershell.exe
2592	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 2612	1940	Bankcerticate223pdf.exe	37
PID 2612 set thread context of 1200	2612	RegSvcs.exe	21
PID 1580 set thread context of 1200	1580	help.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	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bankcerticate223pdf.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
2896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1940	Bankcerticate223pdf.exe
1940	Bankcerticate223pdf.exe
2612	RegSvcs.exe
2612	RegSvcs.exe
2592	powershell.exe
2796	powershell.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe
1580	help.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2612	RegSvcs.exe
2612	RegSvcs.exe
2612	RegSvcs.exe
1580	help.exe
1580	help.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	Bankcerticate223pdf.exe
Token: SeDebugPrivilege	2612	RegSvcs.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	1580	help.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2796	1940	Bankcerticate223pdf.exe	31
PID 1940 wrote to memory of 2796	1940	Bankcerticate223pdf.exe	31
PID 1940 wrote to memory of 2796	1940	Bankcerticate223pdf.exe	31
PID 1940 wrote to memory of 2796	1940	Bankcerticate223pdf.exe	31
PID 1940 wrote to memory of 2592	1940	Bankcerticate223pdf.exe	33
PID 1940 wrote to memory of 2592	1940	Bankcerticate223pdf.exe	33
PID 1940 wrote to memory of 2592	1940	Bankcerticate223pdf.exe	33
PID 1940 wrote to memory of 2592	1940	Bankcerticate223pdf.exe	33
PID 1940 wrote to memory of 2896	1940	Bankcerticate223pdf.exe	34
PID 1940 wrote to memory of 2896	1940	Bankcerticate223pdf.exe	34
PID 1940 wrote to memory of 2896	1940	Bankcerticate223pdf.exe	34
PID 1940 wrote to memory of 2896	1940	Bankcerticate223pdf.exe	34
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1940 wrote to memory of 2612	1940	Bankcerticate223pdf.exe	37
PID 1200 wrote to memory of 1580	1200	Explorer.EXE	38
PID 1200 wrote to memory of 1580	1200	Explorer.EXE	38
PID 1200 wrote to memory of 1580	1200	Explorer.EXE	38
PID 1200 wrote to memory of 1580	1200	Explorer.EXE	38
PID 1580 wrote to memory of 2932	1580	help.exe	39
PID 1580 wrote to memory of 2932	1580	help.exe	39
PID 1580 wrote to memory of 2932	1580	help.exe	39
PID 1580 wrote to memory of 2932	1580	help.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\Bankcerticate223pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Bankcerticate223pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1940
- - 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\Bankcerticate223pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2796
- - 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:2592
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cvRSCwXQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D70.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2896
- - 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:2612
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:1580
- - 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:2932

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\tmp1D70.tmp

Filesize
1KB

MD5
f237b4441a7970824acecf0840a871ef

SHA1
9fe713d27b3e00348015b6e03a6bcda47e1dbde7

SHA256
09b8f1c2b39993ec232b42c92a02e2c7bf3d7a961a16034a4aadf56fe0aa6ce2

SHA512
141ce5cd64f95664fb08862f762aa17cf09bc62ccbddf3bdfea4494365878f6ead4102dd5258d3030573af8d2ef996eb59306ffa682dba4a16c3defa5ca9d5ff

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

Filesize
7KB

MD5
9f106b2a9865df2ea177b4a7e0c4d6e1

SHA1
75d4c62093690e2e544d3078b1ca7ce5d3dce5f9

SHA256
fea95aac7a6fc52df905d96c01e3f543b109163e380717babd6e5d85de7966fc

SHA512
bc650a5531c07025ba65f453619880bf26242801af87b5cceaead1765bb0508ebfa6eaf1540e38f02cabafabb3f2f7759d6a55eeec7f1ba05cdbaa79f85ece29

Download Submit
memory/1580-28-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/1580-27-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/1940-4-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/1940-5-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-6-0x0000000004800000-0x0000000004878000-memory.dmp

Filesize
480KB

Download
memory/1940-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/1940-3-0x0000000000520000-0x0000000000546000-memory.dmp

Filesize
152KB

Download
memory/1940-25-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-1-0x0000000010710000-0x00000000107E2000-memory.dmp

Filesize
840KB

Download
memory/2612-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2612-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2612-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download