formbook | 2b5f20bf3830cdd36406a5b805a1c21a2df77d7fe5b5f0a80a3f97e5dc9756df

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2024 02:31

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General

Target

IRQ2107798_pdf.exe
Size

680KB
MD5

82bd4c01ebb56d4e838dafea4ca369a6
SHA1

da828300ae92f1ff46256ee8083d1b11a5f1e352
SHA256

e0c7519f48b2a37fca3ee1407808121685915fb1243a1ba217ea1663f9119ffd
SHA512

cb9dac5456d02890952eb28efd4717520bd60c8a171dd34a1cae30dd6fa55e3afecc41e84de54fa5ec377b16866021d5eb4a33478c8498f77898fa306e2e06a4
SSDEEP

12288:6rXpUSlB61512158AahA4wk3/ZnxMTjDdiWA9izA4pBqXodAtOlazgTSFcDXQ:sXpUSlB6151215H4A58RnxMTXNqXoUPQ

Score

10^/10

formbook sn03 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn03

Decoy

bridgenorman.com

basketexpo.email

melayuxxx.site

teckhockng.com

artisanvillage.life

web3booster.xyz

avxoco.com

magicgene.xyz

jasondeng.space

beh2owxwsm4j.xyz

modabet608.com

biscottiplans.com

forestaquatics.com

remonte-moebel-planung.com

wycosau389.xyz

srsea.xyz

we-vegotwhatyouwant.com

jc3jw80xfifi.xyz

msdigitalwesite.digital

chairbornegsi.com

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/1824-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1824-40-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5048-71-0x0000000001090000-0x00000000010BF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4380	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	IRQ2107798_pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 1824	2308	IRQ2107798_pdf.exe	104
PID 1824 set thread context of 3456	1824	IRQ2107798_pdf.exe	56
PID 5048 set thread context of 3456	5048	mstsc.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 5 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IRQ2107798_pdf.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
884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
4380	powershell.exe
4380	powershell.exe
1824	IRQ2107798_pdf.exe
1824	IRQ2107798_pdf.exe
1824	IRQ2107798_pdf.exe
1824	IRQ2107798_pdf.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe
5048	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1824	IRQ2107798_pdf.exe
1824	IRQ2107798_pdf.exe
1824	IRQ2107798_pdf.exe
5048	mstsc.exe
5048	mstsc.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4380	powershell.exe
Token: SeDebugPrivilege	1824	IRQ2107798_pdf.exe
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeDebugPrivilege	5048	mstsc.exe
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 4380	2308	IRQ2107798_pdf.exe	100
PID 2308 wrote to memory of 4380	2308	IRQ2107798_pdf.exe	100
PID 2308 wrote to memory of 4380	2308	IRQ2107798_pdf.exe	100
PID 2308 wrote to memory of 884	2308	IRQ2107798_pdf.exe	102
PID 2308 wrote to memory of 884	2308	IRQ2107798_pdf.exe	102
PID 2308 wrote to memory of 884	2308	IRQ2107798_pdf.exe	102
PID 2308 wrote to memory of 1824	2308	IRQ2107798_pdf.exe	104
PID 2308 wrote to memory of 1824	2308	IRQ2107798_pdf.exe	104
PID 2308 wrote to memory of 1824	2308	IRQ2107798_pdf.exe	104
PID 2308 wrote to memory of 1824	2308	IRQ2107798_pdf.exe	104
PID 2308 wrote to memory of 1824	2308	IRQ2107798_pdf.exe	104
PID 2308 wrote to memory of 1824	2308	IRQ2107798_pdf.exe	104
PID 3456 wrote to memory of 5048	3456	Explorer.EXE	105
PID 3456 wrote to memory of 5048	3456	Explorer.EXE	105
PID 3456 wrote to memory of 5048	3456	Explorer.EXE	105
PID 5048 wrote to memory of 5024	5048	mstsc.exe	106
PID 5048 wrote to memory of 5024	5048	mstsc.exe	106
PID 5048 wrote to memory of 5024	5048	mstsc.exe	106

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NOFecdqPGEcwut.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4380
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NOFecdqPGEcwut" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52ED.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:884
- - C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1824
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:5048
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IRQ2107798_pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5024

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nwirjbnx.mrx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp52ED.tmp

Filesize
1KB

MD5
2ee855275e2b16882a33c6ba003c1df0

SHA1
de4312da04c2872e7698d0369ae667fd568c50f2

SHA256
c0008f117fe4e4c10c8f39f1150ea04b78d189984c4a61cdd04ba977f89c02e5

SHA512
02638c86e110f248e3f248f0e39c88c19f41316f2f60bc60b371a73518949ee581a319e224de23ffc8f63a5822ae2b67a4620f1abf2f133a30ac15b145d7184c

Download Submit
memory/1824-40-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1824-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1824-38-0x00000000014D0000-0x000000000181A000-memory.dmp

Filesize
3.3MB

Download
memory/1824-41-0x00000000019A0000-0x00000000019B4000-memory.dmp

Filesize
80KB

Download
memory/2308-3-0x0000000005390000-0x0000000005934000-memory.dmp

Filesize
5.6MB

Download
memory/2308-43-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/2308-8-0x00000000052F0000-0x000000000538C000-memory.dmp

Filesize
624KB

Download
memory/2308-9-0x0000000005E50000-0x0000000005EE2000-memory.dmp

Filesize
584KB

Download
memory/2308-13-0x00000000060B0000-0x0000000006116000-memory.dmp

Filesize
408KB

Download
memory/2308-1-0x0000000000180000-0x000000000022E000-memory.dmp

Filesize
696KB

Download
memory/2308-2-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/2308-7-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/2308-6-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2308-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2308-4-0x0000000004E80000-0x0000000004F12000-memory.dmp

Filesize
584KB

Download
memory/2308-21-0x0000000005EE0000-0x0000000005F14000-memory.dmp

Filesize
208KB

Download
memory/2308-5-0x0000000004D40000-0x0000000004D56000-memory.dmp

Filesize
88KB

Download
memory/3456-42-0x0000000008860000-0x00000000089A4000-memory.dmp

Filesize
1.3MB

Download
memory/3456-72-0x0000000008860000-0x00000000089A4000-memory.dmp

Filesize
1.3MB

Download
memory/3456-76-0x0000000008720000-0x0000000008808000-memory.dmp

Filesize
928KB

Download
memory/4380-36-0x00000000067C0000-0x000000000680C000-memory.dmp

Filesize
304KB

Download
memory/4380-58-0x0000000007AB0000-0x0000000007ACA000-memory.dmp

Filesize
104KB

Download
memory/4380-34-0x00000000061D0000-0x0000000006524000-memory.dmp

Filesize
3.3MB

Download
memory/4380-23-0x0000000006040000-0x00000000060A6000-memory.dmp

Filesize
408KB

Download
memory/4380-22-0x00000000057C0000-0x00000000057E2000-memory.dmp

Filesize
136KB

Download
memory/4380-20-0x0000000005960000-0x0000000005F88000-memory.dmp

Filesize
6.2MB

Download
memory/4380-19-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-17-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-44-0x0000000007740000-0x0000000007772000-memory.dmp

Filesize
200KB

Download
memory/4380-56-0x0000000007980000-0x0000000007A23000-memory.dmp

Filesize
652KB

Download
memory/4380-55-0x0000000006D60000-0x0000000006D7E000-memory.dmp

Filesize
120KB

Download
memory/4380-45-0x000000006C270000-0x000000006C2BC000-memory.dmp

Filesize
304KB

Download
memory/4380-57-0x0000000008100000-0x000000000877A000-memory.dmp

Filesize
6.5MB

Download
memory/4380-35-0x0000000006790000-0x00000000067AE000-memory.dmp

Filesize
120KB

Download
memory/4380-59-0x0000000007B20000-0x0000000007B2A000-memory.dmp

Filesize
40KB

Download
memory/4380-60-0x0000000007D30000-0x0000000007DC6000-memory.dmp

Filesize
600KB

Download
memory/4380-61-0x0000000007CB0000-0x0000000007CC1000-memory.dmp

Filesize
68KB

Download
memory/4380-62-0x0000000007CE0000-0x0000000007CEE000-memory.dmp

Filesize
56KB

Download
memory/4380-63-0x0000000007CF0000-0x0000000007D04000-memory.dmp

Filesize
80KB

Download
memory/4380-64-0x0000000007DF0000-0x0000000007E0A000-memory.dmp

Filesize
104KB

Download
memory/4380-65-0x0000000007DD0000-0x0000000007DD8000-memory.dmp

Filesize
32KB

Download
memory/4380-15-0x00000000051B0000-0x00000000051E6000-memory.dmp

Filesize
216KB

Download
memory/4380-16-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-70-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/5048-71-0x0000000001090000-0x00000000010BF000-memory.dmp

Filesize
188KB

Download
memory/5048-67-0x0000000000AC0000-0x0000000000BFA000-memory.dmp

Filesize
1.2MB

Download
memory/5048-66-0x0000000000AC0000-0x0000000000BFA000-memory.dmp

Filesize
1.2MB

Download