formbook | 6ce77c20aa2bb6bd48fe6255c91a4167fd81215ed4f4fec78c7387ef2247ae7b

Resubmissions

13-12-2024 12:08

241213-pa5thsxqcy 10

13-12-2024 12:04

241213-n8447sxphy 10

Analysis

max time kernel
89s
max time network
90s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 12:04

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General

Target

VBshqUbZtSxUibM.exe
Size

605KB
MD5

5219b5632bdd4d2bf00ca0405660a8cd
SHA1

118b516281a7f9d07e23014611e3a0c5148ba2d6
SHA256

6ce77c20aa2bb6bd48fe6255c91a4167fd81215ed4f4fec78c7387ef2247ae7b
SHA512

998748303f20e88d0239cb7cf5fe8ce055c64c27085d129f174f10705bb9ce2cb838b59da7bed922fe069e03624dffb7306f482966e5bdb2df6481f6c7b6746f
SSDEEP

12288:lkjnD7Oh7Ch0pUCxtrqeZx1Kufvye6vvc3JZgPeAp0:anD7OhM0nx1t/KufvyeOwgb

Score

10^/10

formbook sx01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sx01

Decoy

r-salessolutions.xyz

jdh1.info

olar-panel-jobs-93084.bond

aebrasil.shop

oshua-xaaaa.buzz

xzkm.shop

nitedviplumbing.net

nnevateknoloji.xyz

rg-a.biz

indow-replacement-34091.bond

uyersagent3percent.net

ostbag.net

ibosolv.net

ahve.today

ophotshotjobs.today

emoreez.art

ift-chairs-94905.bond

okerdom-e.best

stagr.fun

irtyf-ingrancher.info

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/3120-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3120-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/460-68-0x0000000000800000-0x000000000082F000-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
2700	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	VBshqUbZtSxUibM.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 3120 set thread context of 3440	3120	VBshqUbZtSxUibM.exe	56
PID 460 set thread context of 3440	460	cmstp.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 4 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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VBshqUbZtSxUibM.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
3120	VBshqUbZtSxUibM.exe
3120	VBshqUbZtSxUibM.exe
3120	VBshqUbZtSxUibM.exe
3120	VBshqUbZtSxUibM.exe
2700	powershell.exe
2700	powershell.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe
460	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3120	VBshqUbZtSxUibM.exe
3120	VBshqUbZtSxUibM.exe
3120	VBshqUbZtSxUibM.exe
460	cmstp.exe
460	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3120	VBshqUbZtSxUibM.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	460	cmstp.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2700	2364	VBshqUbZtSxUibM.exe	89
PID 2364 wrote to memory of 2700	2364	VBshqUbZtSxUibM.exe	89
PID 2364 wrote to memory of 2700	2364	VBshqUbZtSxUibM.exe	89
PID 2364 wrote to memory of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 2364 wrote to memory of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 2364 wrote to memory of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 2364 wrote to memory of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 2364 wrote to memory of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 2364 wrote to memory of 3120	2364	VBshqUbZtSxUibM.exe	91
PID 3440 wrote to memory of 460	3440	Explorer.EXE	92
PID 3440 wrote to memory of 460	3440	Explorer.EXE	92
PID 3440 wrote to memory of 460	3440	Explorer.EXE	92
PID 460 wrote to memory of 4736	460	cmstp.exe	93
PID 460 wrote to memory of 4736	460	cmstp.exe	93
PID 460 wrote to memory of 4736	460	cmstp.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe
  "C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2364
- - 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\VBshqUbZtSxUibM.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2700
- - C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe
    "C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3120
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:460
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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\Temp\__PSScriptPolicyTest_h53xgsqy.knk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/460-68-0x0000000000800000-0x000000000082F000-memory.dmp

Filesize
188KB

Download
memory/460-59-0x00000000004B0000-0x00000000004C6000-memory.dmp

Filesize
88KB

Download
memory/460-60-0x00000000004B0000-0x00000000004C6000-memory.dmp

Filesize
88KB

Download
memory/2364-8-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2364-5-0x0000000005A10000-0x0000000005A1A000-memory.dmp

Filesize
40KB

Download
memory/2364-6-0x0000000005B10000-0x0000000005B28000-memory.dmp

Filesize
96KB

Download
memory/2364-7-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2364-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2364-9-0x0000000006F30000-0x0000000006FA6000-memory.dmp

Filesize
472KB

Download
memory/2364-10-0x00000000095E0000-0x000000000967C000-memory.dmp

Filesize
624KB

Download
memory/2364-4-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2364-13-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2364-3-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/2364-2-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/2364-1-0x0000000000DC0000-0x0000000000E5E000-memory.dmp

Filesize
632KB

Download
memory/2700-26-0x0000000006270000-0x00000000062D6000-memory.dmp

Filesize
408KB

Download
memory/2700-39-0x0000000007880000-0x00000000078B2000-memory.dmp

Filesize
200KB

Download
memory/2700-67-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2700-21-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2700-22-0x00000000059F0000-0x0000000006018000-memory.dmp

Filesize
6.2MB

Download
memory/2700-23-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2700-24-0x0000000005900000-0x0000000005922000-memory.dmp

Filesize
136KB

Download
memory/2700-25-0x0000000006190000-0x00000000061F6000-memory.dmp

Filesize
408KB

Download
memory/2700-19-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/2700-20-0x0000000003000000-0x0000000003036000-memory.dmp

Filesize
216KB

Download
memory/2700-36-0x00000000063E0000-0x0000000006734000-memory.dmp

Filesize
3.3MB

Download
memory/2700-37-0x00000000068C0000-0x00000000068DE000-memory.dmp

Filesize
120KB

Download
memory/2700-38-0x0000000006900000-0x000000000694C000-memory.dmp

Filesize
304KB

Download
memory/2700-62-0x0000000007E40000-0x0000000007E54000-memory.dmp

Filesize
80KB

Download
memory/2700-41-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2700-40-0x0000000071040000-0x000000007108C000-memory.dmp

Filesize
304KB

Download
memory/2700-53-0x00000000078C0000-0x0000000007963000-memory.dmp

Filesize
652KB

Download
memory/2700-52-0x0000000006EB0000-0x0000000006ECE000-memory.dmp

Filesize
120KB

Download
memory/2700-51-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2700-54-0x0000000008240000-0x00000000088BA000-memory.dmp

Filesize
6.5MB

Download
memory/2700-55-0x0000000007C00000-0x0000000007C1A000-memory.dmp

Filesize
104KB

Download
memory/2700-56-0x0000000007C70000-0x0000000007C7A000-memory.dmp

Filesize
40KB

Download
memory/2700-57-0x0000000007E80000-0x0000000007F16000-memory.dmp

Filesize
600KB

Download
memory/2700-58-0x0000000007E00000-0x0000000007E11000-memory.dmp

Filesize
68KB

Download
memory/2700-64-0x0000000007F20000-0x0000000007F28000-memory.dmp

Filesize
32KB

Download
memory/2700-63-0x0000000007F40000-0x0000000007F5A000-memory.dmp

Filesize
104KB

Download
memory/2700-61-0x0000000007E30000-0x0000000007E3E000-memory.dmp

Filesize
56KB

Download
memory/3120-14-0x0000000001690000-0x00000000019DA000-memory.dmp

Filesize
3.3MB

Download
memory/3120-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3120-17-0x00000000014B0000-0x00000000014C5000-memory.dmp

Filesize
84KB

Download
memory/3120-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3440-18-0x0000000004720000-0x0000000004843000-memory.dmp

Filesize
1.1MB

Download
memory/3440-72-0x0000000004850000-0x00000000048FE000-memory.dmp

Filesize
696KB

Download