formbook | 5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2025 06:16

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General

Target

5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
Size

925KB
MD5

6e9319dca3bfbcefce52d8c1ee590b7b
SHA1

80c7c30f95a7821186e8f566c02aea4898e3d190
SHA256

5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4
SHA512

f4ae7600b94b866bea1935c0d30ee4a7338d1ba1b9b3bec68d2e9bf4afbec57534d882c8d9db03ca5362be48aab6de7009cb832e54306d669ec55884ada50991
SSDEEP

12288:Cd0NmhWSft/ywIYHeRP+cuYWqV/WNyHZGijPSJAjHFHSUw0fedLGL31d8B8dkc9V:w0YhWIBywpUH5bgijq2dPw

Score

10^/10

formbook b02a discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b02a

Decoy

nnovate.host

yrvo.shop

obify.party

55665.one

vlisazouasiul.store

arjohbs.shop

mjsccc5716.shop

nfluencer-marketing-86606.bond

atellite-internet-74549.bond

arehouse-inventory-82506.bond

kanzaturf.net

airbypatrickmcguire.net

90880a15.buzz

ancake888.info

hopcroma.store

usinessloanscanada524285.icu

mdjr.world

9kct.xyz

ombrd.finance

luratu.xyz

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
behavioral2/memory/2720-45-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1300-92-0x00000000001A0000-0x00000000001CF000-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
976	powershell.exe
4632	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3244 set thread context of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 2720 set thread context of 3476	2720	RegSvcs.exe	56
PID 1300 set thread context of 3476	1300	cmmon32.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	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.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	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
1820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
976	powershell.exe
4632	powershell.exe
3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
2720	RegSvcs.exe
2720	RegSvcs.exe
2720	RegSvcs.exe
2720	RegSvcs.exe
976	powershell.exe
4632	powershell.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe
1300	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2720	RegSvcs.exe
2720	RegSvcs.exe
2720	RegSvcs.exe
1300	cmmon32.exe
1300	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
Token: SeDebugPrivilege	976	powershell.exe
Token: SeDebugPrivilege	4632	powershell.exe
Token: SeDebugPrivilege	2720	RegSvcs.exe
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeDebugPrivilege	1300	cmmon32.exe
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 976	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	97
PID 3244 wrote to memory of 976	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	97
PID 3244 wrote to memory of 976	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	97
PID 3244 wrote to memory of 4632	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	99
PID 3244 wrote to memory of 4632	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	99
PID 3244 wrote to memory of 4632	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	99
PID 3244 wrote to memory of 1820	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	100
PID 3244 wrote to memory of 1820	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	100
PID 3244 wrote to memory of 1820	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	100
PID 3244 wrote to memory of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 3244 wrote to memory of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 3244 wrote to memory of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 3244 wrote to memory of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 3244 wrote to memory of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 3244 wrote to memory of 2720	3244	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	103
PID 3476 wrote to memory of 1300	3476	Explorer.EXE	104
PID 3476 wrote to memory of 1300	3476	Explorer.EXE	104
PID 3476 wrote to memory of 1300	3476	Explorer.EXE	104
PID 1300 wrote to memory of 3508	1300	cmmon32.exe	105
PID 1300 wrote to memory of 3508	1300	cmmon32.exe	105
PID 1300 wrote to memory of 3508	1300	cmmon32.exe	105

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
  "C:\Users\Admin\AppData\Local\Temp\5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.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:3244
- - 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\5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:976
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nXFySbbIRNPzW.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4632
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nXFySbbIRNPzW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC479.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1820
- - 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:2720
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:1300
- - 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:3508

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
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
b79b232fc1c2e1d69d1c719c58e7a2e3

SHA1
e414b7339abda8d6fd75e6caa27da972b383b04b

SHA256
8735bfa880aa3aad16c475a43688d6d6784d38906635db1ab8281b21552f710b

SHA512
dc14fa5fe07df7402df3bb7e5b0790b279b0afbbd4c0a7b25f24236b38665d5fb840e18afe19c7f9a16b63195c46c940fa7f655fad96450451dec5133e3de62e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3rwavbbc.nzt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC479.tmp

Filesize
1KB

MD5
4abc542d6343840680135574a869cda6

SHA1
cc1a26264299aedc5bf072af4d8c214604d4223d

SHA256
e514feeeb3180d9cf9f213ff994978e6c5281cef2fa1643dac960c3dde9b1caa

SHA512
f9745d4c50eac2bba6150d4114b41d386c53f5a20849e3ffdc8077bc0ce008e25f263f40886e0014fd99910faecf5a8a725588e593ec5a724c365ae27745352c

Download Submit
memory/976-68-0x00000000073B0000-0x0000000007446000-memory.dmp

Filesize
600KB

Download
memory/976-30-0x0000000005570000-0x00000000055D6000-memory.dmp

Filesize
408KB

Download
memory/976-86-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/976-83-0x0000000007450000-0x0000000007458000-memory.dmp

Filesize
32KB

Download
memory/976-82-0x0000000007470000-0x000000000748A000-memory.dmp

Filesize
104KB

Download
memory/976-81-0x0000000007370000-0x0000000007384000-memory.dmp

Filesize
80KB

Download
memory/976-80-0x0000000007360000-0x000000000736E000-memory.dmp

Filesize
56KB

Download
memory/976-15-0x0000000004870000-0x00000000048A6000-memory.dmp

Filesize
216KB

Download
memory/976-16-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/976-17-0x0000000004F40000-0x0000000005568000-memory.dmp

Filesize
6.2MB

Download
memory/976-18-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/976-19-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/976-69-0x0000000007330000-0x0000000007341000-memory.dmp

Filesize
68KB

Download
memory/976-67-0x00000000071A0000-0x00000000071AA000-memory.dmp

Filesize
40KB

Download
memory/976-65-0x0000000007780000-0x0000000007DFA000-memory.dmp

Filesize
6.5MB

Download
memory/976-51-0x0000000006340000-0x000000000638C000-memory.dmp

Filesize
304KB

Download
memory/976-66-0x0000000007130000-0x000000000714A000-memory.dmp

Filesize
104KB

Download
memory/976-24-0x0000000004E40000-0x0000000004E62000-memory.dmp

Filesize
136KB

Download
memory/976-31-0x0000000005790000-0x00000000057F6000-memory.dmp

Filesize
408KB

Download
memory/976-63-0x0000000006DF0000-0x0000000006E0E000-memory.dmp

Filesize
120KB

Download
memory/976-64-0x0000000006E10000-0x0000000006EB3000-memory.dmp

Filesize
652KB

Download
memory/976-53-0x0000000075A10000-0x0000000075A5C000-memory.dmp

Filesize
304KB

Download
memory/976-50-0x0000000005E00000-0x0000000005E1E000-memory.dmp

Filesize
120KB

Download
memory/976-52-0x00000000063F0000-0x0000000006422000-memory.dmp

Filesize
200KB

Download
memory/1300-92-0x00000000001A0000-0x00000000001CF000-memory.dmp

Filesize
188KB

Download
memory/1300-87-0x0000000000110000-0x000000000011C000-memory.dmp

Filesize
48KB

Download
memory/2720-45-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3244-0-0x000000007518E000-0x000000007518F000-memory.dmp

Filesize
4KB

Download
memory/3244-1-0x0000000000290000-0x000000000037E000-memory.dmp

Filesize
952KB

Download
memory/3244-49-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3244-5-0x0000000004E20000-0x0000000004E2A000-memory.dmp

Filesize
40KB

Download
memory/3244-2-0x0000000005430000-0x00000000059D4000-memory.dmp

Filesize
5.6MB

Download
memory/3244-4-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3244-3-0x0000000004D80000-0x0000000004E12000-memory.dmp

Filesize
584KB

Download
memory/3244-10-0x000000000CDA0000-0x000000000CE3C000-memory.dmp

Filesize
624KB

Download
memory/3244-9-0x00000000027B0000-0x0000000002828000-memory.dmp

Filesize
480KB

Download
memory/3244-8-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3244-7-0x000000007518E000-0x000000007518F000-memory.dmp

Filesize
4KB

Download
memory/3244-6-0x00000000051C0000-0x00000000051DE000-memory.dmp

Filesize
120KB

Download
memory/3476-96-0x0000000003240000-0x0000000003334000-memory.dmp

Filesize
976KB

Download
memory/4632-20-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/4632-70-0x0000000075A10000-0x0000000075A5C000-memory.dmp

Filesize
304KB

Download
memory/4632-46-0x0000000005EF0000-0x0000000006244000-memory.dmp

Filesize
3.3MB

Download
memory/4632-91-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/4632-22-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/4632-21-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download