formbook | 59985a17d6de339280dfdbbd0ab6399e8f9f736de109d41feea5b5f4f46f81f0

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 10:47

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General

Target

FinalApprovedPO.scr
Size

736KB
MD5

92f57354478728b4b1982d2acfe79393
SHA1

5d8dde6e098981b329149bd0b87eb42baab32b32
SHA256

59985a17d6de339280dfdbbd0ab6399e8f9f736de109d41feea5b5f4f46f81f0
SHA512

6c7d00322951dd459f77cd27ae449c46d65b9e88b85b0df2b3c745a4bbe7ef0562a17e620dda84d4366e71936131a5214c7dd81eb1714dff86cb654e27c2d28b
SSDEEP

12288:E5/6/hRSUun6oxsGv7dgTnvtHOUL2zoVbpig9GrghiAExkR:c6On627dgTn1BCzoVFig9GrUiAEs

Score

10^/10

formbook g43m discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

g43m

Decoy

8328.shop

kronoseletronicos.online

pasanghoki3.homes

comitatogroscavallo.info

online-advertising-96729.bond

cpt1025.top

news-xzurufo.xyz

zycr.shop

loanplan.xyz

osipovs.digital

pgflow.cloud

alooytv17.shop

swirlstakedtawkee.cloud

sipoja.shop

senior-living-17169.bond

junepages.online

heavydutyweld.shop

smarminds.xyz

alistika.info

staplerl.shop

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/2708-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/848-29-0x0000000000080000-0x00000000000AF000-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
1364	powershell.exe
2916	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1124 set thread context of 2708	1124	FinalApprovedPO.scr	37
PID 2708 set thread context of 1192	2708	RegSvcs.exe	21
PID 848 set thread context of 1192	848	colorcpl.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FinalApprovedPO.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
1124	FinalApprovedPO.scr
1124	FinalApprovedPO.scr
1124	FinalApprovedPO.scr
1364	powershell.exe
2916	powershell.exe
1124	FinalApprovedPO.scr
2708	RegSvcs.exe
2708	RegSvcs.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe
848	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2708	RegSvcs.exe
2708	RegSvcs.exe
2708	RegSvcs.exe
848	colorcpl.exe
848	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1124	FinalApprovedPO.scr
Token: SeDebugPrivilege	1364	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	2708	RegSvcs.exe
Token: SeDebugPrivilege	848	colorcpl.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 1364	1124	FinalApprovedPO.scr	31
PID 1124 wrote to memory of 1364	1124	FinalApprovedPO.scr	31
PID 1124 wrote to memory of 1364	1124	FinalApprovedPO.scr	31
PID 1124 wrote to memory of 1364	1124	FinalApprovedPO.scr	31
PID 1124 wrote to memory of 2916	1124	FinalApprovedPO.scr	33
PID 1124 wrote to memory of 2916	1124	FinalApprovedPO.scr	33
PID 1124 wrote to memory of 2916	1124	FinalApprovedPO.scr	33
PID 1124 wrote to memory of 2916	1124	FinalApprovedPO.scr	33
PID 1124 wrote to memory of 2936	1124	FinalApprovedPO.scr	34
PID 1124 wrote to memory of 2936	1124	FinalApprovedPO.scr	34
PID 1124 wrote to memory of 2936	1124	FinalApprovedPO.scr	34
PID 1124 wrote to memory of 2936	1124	FinalApprovedPO.scr	34
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1124 wrote to memory of 2708	1124	FinalApprovedPO.scr	37
PID 1192 wrote to memory of 848	1192	Explorer.EXE	40
PID 1192 wrote to memory of 848	1192	Explorer.EXE	40
PID 1192 wrote to memory of 848	1192	Explorer.EXE	40
PID 1192 wrote to memory of 848	1192	Explorer.EXE	40
PID 848 wrote to memory of 2008	848	colorcpl.exe	41
PID 848 wrote to memory of 2008	848	colorcpl.exe	41
PID 848 wrote to memory of 2008	848	colorcpl.exe	41
PID 848 wrote to memory of 2008	848	colorcpl.exe	41

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\FinalApprovedPO.scr
  "C:\Users\Admin\AppData\Local\Temp\FinalApprovedPO.scr" /S
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1124
- - 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\FinalApprovedPO.scr"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1364
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kCpsUhyCPjSiry.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2916
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kCpsUhyCPjSiry" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2936
- - 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:2708
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2752
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2168
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:848
- - 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:2008

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\tmp6E.tmp

Filesize
1KB

MD5
99ce6f9c8551211c337617e5ffea5001

SHA1
629a01230f05d503926e38000e2c5b604f4e5bb0

SHA256
1f954fd36e6d89884524b790387666ec681cbdcfed71f6581cbc4704fa017d18

SHA512
03290373a224e5c8d868f52516118c78c8db5cb97010b38bb4553a0736cfbc00b1cffce900bd72498a118c70ca1c0b9296d65253c16cfa7785be1397f49e3632

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

Filesize
7KB

MD5
a6c2b9c34eef0711df3056b378dc20a8

SHA1
58fd7def56cee9f232ea9fda53e8705d08ba04d4

SHA256
4f7eb7f8a8a370f7acad73702b1ede87169fea983fb74c0e5b094d63a3c670d0

SHA512
d687c2ea2a2e9232c4da74177be2403fc90a0b525f234d6d5d4a3b7c02086c7e96e02f8a6bbbdc2fb74f27938dee4f5f5e72163b67cf783453fdf6d5a47f9163

Download Submit
memory/848-29-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/848-28-0x0000000000500000-0x0000000000518000-memory.dmp

Filesize
96KB

Download
memory/1124-4-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/1124-5-0x0000000074B30000-0x000000007521E000-memory.dmp

Filesize
6.9MB

Download
memory/1124-6-0x0000000000430000-0x00000000004A8000-memory.dmp

Filesize
480KB

Download
memory/1124-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/1124-3-0x00000000005D0000-0x00000000005F6000-memory.dmp

Filesize
152KB

Download
memory/1124-25-0x0000000074B30000-0x000000007521E000-memory.dmp

Filesize
6.9MB

Download
memory/1124-2-0x0000000074B30000-0x000000007521E000-memory.dmp

Filesize
6.9MB

Download
memory/1124-1-0x0000000000370000-0x000000000042A000-memory.dmp

Filesize
744KB

Download
memory/1192-27-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2708-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download