formbook | b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01/08/2024, 08:21

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General

Target

MalwareBazaar.exe
Size

620KB
MD5

035c35bf6a68763ba391504a7c6a4993
SHA1

2fb903b75098baf7d39fdc3db68cfb35e03100e8
SHA256

b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d
SHA512

4c6cbdcfed65bdcf1c37f93d02f6cf0ae839a3ac6016b594ff690a1d24615ba9abdeeb651734bb4b237c8cc9045e91c5ac25e1ed30b7762abe62a93a7170f049
SSDEEP

12288:j4lz4cX9/R3FcFCstoAsfqYFPV7PGuj9zcU/Nk8emr1y6m7H2ph1hRvjndCrkR:jcz4c7eFCseACJhzcU/Nkarub2fJvjdF

Score

10^/10

formbook ss24 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ss24

Decoy

agingwellhc.com

unikbetanggur.autos

eb2024yl.top

ja380.xyz

thehalcyon.studio

maudsoogrim.com

esteler10.click

mewtcp.xyz

www-zjbf1.club

kucinglucu.online

lunwencheck.com

65597.photos

erbxeu358h.top

startable.online

yousend.xyz

csharksg.com

centricoatings.com

ntruhslearn.xyz

achabakra.xyz

zuntool.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/2404-27-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2404-39-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3252-73-0x00000000012E0000-0x000000000130F000-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
3096	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-1-5-21-1266786182-1874524688-71015548-1000\Control Panel\International\Geo\Nation	MalwareBazaar.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4584 set thread context of 2404	4584	MalwareBazaar.exe	91
PID 2404 set thread context of 3456	2404	MalwareBazaar.exe	55
PID 3252 set thread context of 3456	3252	NETSTAT.EXE	55

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	MalwareBazaar.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	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3252	NETSTAT.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.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
1908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
3096	powershell.exe
4584	MalwareBazaar.exe
4584	MalwareBazaar.exe
2404	MalwareBazaar.exe
2404	MalwareBazaar.exe
2404	MalwareBazaar.exe
2404	MalwareBazaar.exe
3096	powershell.exe
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE
3252	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2404	MalwareBazaar.exe
2404	MalwareBazaar.exe
2404	MalwareBazaar.exe
3252	NETSTAT.EXE
3252	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	3096	powershell.exe
Token: SeDebugPrivilege	4584	MalwareBazaar.exe
Token: SeDebugPrivilege	2404	MalwareBazaar.exe
Token: SeDebugPrivilege	3252	NETSTAT.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3456	Explorer.EXE
3456	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3456	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 3096	4584	MalwareBazaar.exe	86
PID 4584 wrote to memory of 3096	4584	MalwareBazaar.exe	86
PID 4584 wrote to memory of 3096	4584	MalwareBazaar.exe	86
PID 4584 wrote to memory of 1908	4584	MalwareBazaar.exe	88
PID 4584 wrote to memory of 1908	4584	MalwareBazaar.exe	88
PID 4584 wrote to memory of 1908	4584	MalwareBazaar.exe	88
PID 4584 wrote to memory of 5064	4584	MalwareBazaar.exe	90
PID 4584 wrote to memory of 5064	4584	MalwareBazaar.exe	90
PID 4584 wrote to memory of 5064	4584	MalwareBazaar.exe	90
PID 4584 wrote to memory of 2404	4584	MalwareBazaar.exe	91
PID 4584 wrote to memory of 2404	4584	MalwareBazaar.exe	91
PID 4584 wrote to memory of 2404	4584	MalwareBazaar.exe	91
PID 4584 wrote to memory of 2404	4584	MalwareBazaar.exe	91
PID 4584 wrote to memory of 2404	4584	MalwareBazaar.exe	91
PID 4584 wrote to memory of 2404	4584	MalwareBazaar.exe	91
PID 3456 wrote to memory of 3252	3456	Explorer.EXE	92
PID 3456 wrote to memory of 3252	3456	Explorer.EXE	92
PID 3456 wrote to memory of 3252	3456	Explorer.EXE	92
PID 3252 wrote to memory of 4084	3252	NETSTAT.EXE	93
PID 3252 wrote to memory of 4084	3252	NETSTAT.EXE	93
PID 3252 wrote to memory of 4084	3252	NETSTAT.EXE	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.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:4584
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DUsLon.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3096
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DUsLon" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD63C.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1908
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    PID:5064
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2404
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3252
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4084

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\Temp\__PSScriptPolicyTest_0xyupw4g.4hu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD63C.tmp

Filesize
1KB

MD5
3c04b3024ae0eb15a00226704699655f

SHA1
7f10125a4f21c5a9279e3d1f939b44cfa4f93473

SHA256
50c439e5d85bf4e13fe9e982f684c6d97bb015c5566c5df148d733ea2cb1e3ec

SHA512
74d6953b5b77b4c6706d38a359f07b2aec1c0683b900f6a62ceb151ba021997bd325426d3f9ec2d016bb71bdc883c920fd2643759a42703973d29fdf555c07b0

Download Submit
memory/2404-38-0x0000000001590000-0x00000000018DA000-memory.dmp

Filesize
3.3MB

Download
memory/2404-39-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2404-40-0x0000000000FE0000-0x0000000000FF4000-memory.dmp

Filesize
80KB

Download
memory/2404-27-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3096-16-0x0000000005500000-0x0000000005B28000-memory.dmp

Filesize
6.2MB

Download
memory/3096-63-0x0000000007990000-0x0000000007A26000-memory.dmp

Filesize
600KB

Download
memory/3096-72-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-69-0x0000000007A30000-0x0000000007A38000-memory.dmp

Filesize
32KB

Download
memory/3096-14-0x0000000002AD0000-0x0000000002B06000-memory.dmp

Filesize
216KB

Download
memory/3096-68-0x0000000007A50000-0x0000000007A6A000-memory.dmp

Filesize
104KB

Download
memory/3096-15-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-67-0x0000000007950000-0x0000000007964000-memory.dmp

Filesize
80KB

Download
memory/3096-21-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-65-0x0000000007940000-0x000000000794E000-memory.dmp

Filesize
56KB

Download
memory/3096-64-0x0000000007910000-0x0000000007921000-memory.dmp

Filesize
68KB

Download
memory/3096-62-0x0000000007780000-0x000000000778A000-memory.dmp

Filesize
40KB

Download
memory/3096-61-0x0000000007710000-0x000000000772A000-memory.dmp

Filesize
104KB

Download
memory/3096-28-0x0000000005E30000-0x0000000006184000-memory.dmp

Filesize
3.3MB

Download
memory/3096-20-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/3096-19-0x0000000005BA0000-0x0000000005C06000-memory.dmp

Filesize
408KB

Download
memory/3096-18-0x0000000005430000-0x0000000005452000-memory.dmp

Filesize
136KB

Download
memory/3096-60-0x0000000007D50000-0x00000000083CA000-memory.dmp

Filesize
6.5MB

Download
memory/3096-59-0x0000000007610000-0x00000000076B3000-memory.dmp

Filesize
652KB

Download
memory/3096-56-0x0000000006A10000-0x0000000006A2E000-memory.dmp

Filesize
120KB

Download
memory/3096-57-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/3096-58-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/3096-42-0x00000000063F0000-0x000000000640E000-memory.dmp

Filesize
120KB

Download
memory/3096-43-0x00000000064A0000-0x00000000064EC000-memory.dmp

Filesize
304KB

Download
memory/3096-44-0x000000007F3A0000-0x000000007F3B0000-memory.dmp

Filesize
64KB

Download
memory/3096-45-0x00000000069B0000-0x00000000069E2000-memory.dmp

Filesize
200KB

Download
memory/3096-46-0x00000000752D0000-0x000000007531C000-memory.dmp

Filesize
304KB

Download
memory/3252-66-0x0000000000E70000-0x0000000000E7B000-memory.dmp

Filesize
44KB

Download
memory/3252-73-0x00000000012E0000-0x000000000130F000-memory.dmp

Filesize
188KB

Download
memory/3456-78-0x0000000008350000-0x0000000008456000-memory.dmp

Filesize
1.0MB

Download
memory/3456-76-0x00000000081E0000-0x0000000008349000-memory.dmp

Filesize
1.4MB

Download
memory/3456-41-0x00000000081E0000-0x0000000008349000-memory.dmp

Filesize
1.4MB

Download
memory/4584-5-0x0000000004D80000-0x0000000004D8A000-memory.dmp

Filesize
40KB

Download
memory/4584-29-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/4584-7-0x0000000008220000-0x000000000822E000-memory.dmp

Filesize
56KB

Download
memory/4584-37-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-4-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-35-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-6-0x0000000005000000-0x0000000005016000-memory.dmp

Filesize
88KB

Download
memory/4584-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/4584-9-0x0000000008500000-0x000000000859C000-memory.dmp

Filesize
624KB

Download
memory/4584-8-0x0000000008240000-0x00000000082B6000-memory.dmp

Filesize
472KB

Download
memory/4584-3-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/4584-2-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/4584-1-0x00000000002E0000-0x000000000037E000-memory.dmp

Filesize
632KB

Download