formbook | 41ed6a6bb84eb0677d93b85dc94532cbe4736a5cd251f03f0241efc428029caf

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 13:06

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General

Target

af9ec0a3038bbe105c8f81d9f501364b.exe
Size

2.0MB
MD5

af9ec0a3038bbe105c8f81d9f501364b
SHA1

98fbd79c84a99026b01dbdfc9919a30dc0114ff4
SHA256

41ed6a6bb84eb0677d93b85dc94532cbe4736a5cd251f03f0241efc428029caf
SHA512

d75eca2a90e9a79a001c67c42cb9ef32676f4c79e945da1885bf8541cb426007132dfe3d53fd352ad2e8b94155ee20ac473ea71c837f64cbe52479cd455a60a4
SSDEEP

49152:qfDe+fmH7RRZ1UW84VCyH+4FAGqnx+lg3jszQ8u1ejSCg+AbE0:qfDQQsrh8E0

Score

10^/10

formbook kmge credential_access discovery execution persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kmge

Decoy

jia0752d.com

cq0jt.sbs

whimsicalweddingrentals.com

meetsex-here.life

hhe-crv220.com

bedbillionaire.com

soycmo.com

mrawkward.xyz

11ramshornroad.com

motoyonaturals.com

thischicloves.com

gacorbet.pro

ihsanid.com

pancaketurner.com

santanarstore.com

cr3dtv.com

negotools.com

landfillequip.com

sejasuapropriachefe.com

diamant-verkopen.store

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/220-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/220-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2984-25-0x0000000001020000-0x000000000104F000-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
2248	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	af9ec0a3038bbe105c8f81d9f501364b.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\af9ec0a3038bbe105c8f81d9f501364b = "C:\\Users\\Admin\\af9ec0a3038bbe105c8f81d9f501364b.exe"	af9ec0a3038bbe105c8f81d9f501364b.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2328 set thread context of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 220 set thread context of 3524	220	wmplayer.exe	56
PID 2984 set thread context of 3524	2984	control.exe	56
PID 2984 set thread context of 5052	2984	control.exe	88

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 2 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	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Modifies registry class 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2248	powershell.exe
2248	powershell.exe
220	wmplayer.exe
220	wmplayer.exe
220	wmplayer.exe
220	wmplayer.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
220	wmplayer.exe
220	wmplayer.exe
220	wmplayer.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe
2984	control.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	af9ec0a3038bbe105c8f81d9f501364b.exe
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeDebugPrivilege	220	wmplayer.exe
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeDebugPrivilege	2984	control.exe
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3524	Explorer.EXE
3524	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3524	Explorer.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2248	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	84
PID 2328 wrote to memory of 2248	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	84
PID 2328 wrote to memory of 5052	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	88
PID 2328 wrote to memory of 5052	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	88
PID 2328 wrote to memory of 5052	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	88
PID 2328 wrote to memory of 5052	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	88
PID 2328 wrote to memory of 4568	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	90
PID 2328 wrote to memory of 4568	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	90
PID 2328 wrote to memory of 4568	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	90
PID 2328 wrote to memory of 4568	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	90
PID 2328 wrote to memory of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 2328 wrote to memory of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 2328 wrote to memory of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 2328 wrote to memory of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 2328 wrote to memory of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 2328 wrote to memory of 220	2328	af9ec0a3038bbe105c8f81d9f501364b.exe	91
PID 3524 wrote to memory of 2984	3524	Explorer.EXE	95
PID 3524 wrote to memory of 2984	3524	Explorer.EXE	95
PID 3524 wrote to memory of 2984	3524	Explorer.EXE	95
PID 2984 wrote to memory of 4328	2984	control.exe	101
PID 2984 wrote to memory of 4328	2984	control.exe	101
PID 2984 wrote to memory of 4328	2984	control.exe	101
PID 2984 wrote to memory of 1088	2984	control.exe	106
PID 2984 wrote to memory of 1088	2984	control.exe	106
PID 2984 wrote to memory of 1088	2984	control.exe	106

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:3524
- C:\Users\Admin\AppData\Local\Temp\af9ec0a3038bbe105c8f81d9f501364b.exe
  "C:\Users\Admin\AppData\Local\Temp\af9ec0a3038bbe105c8f81d9f501364b.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2248
- - C:\Windows\System32\notepad.exe
    "C:\Windows\System32\notepad.exe"
    3⤵
    PID:5052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
    3⤵
    PID:4568
- - C:\Program Files (x86)\Windows Media Player\wmplayer.exe
    "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:220
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4860
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4028
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1636
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4328
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jxwdtjdn.ydt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logim.jpeg

Filesize
75KB

MD5
a3d4a786edaf3b166df0bcdff9b54443

SHA1
d3e0980933ca9d58832093c0f9d67708aaf87e8f

SHA256
2f436c12b4c9b2c4920d089a03a9aca1930dd1f5472ae94755f7f6e485b5d0c6

SHA512
c4af54b5d22c2b18f8a8e808898c51126c8e3634eb9c2edf28cf0a52b04db56215d94d3b668ba342c2b5ad682d015290139442f0b2115b8fb585366c2d1d6f90

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/220-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/220-18-0x0000000000EE0000-0x000000000122A000-memory.dmp

Filesize
3.3MB

Download
memory/220-21-0x0000000000A70000-0x0000000000A84000-memory.dmp

Filesize
80KB

Download
memory/220-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2248-12-0x00007FFDB7250000-0x00007FFDB7D11000-memory.dmp

Filesize
10.8MB

Download
memory/2248-0-0x00007FFDB7253000-0x00007FFDB7255000-memory.dmp

Filesize
8KB

Download
memory/2248-16-0x00007FFDB7250000-0x00007FFDB7D11000-memory.dmp

Filesize
10.8MB

Download
memory/2248-11-0x00007FFDB7250000-0x00007FFDB7D11000-memory.dmp

Filesize
10.8MB

Download
memory/2248-1-0x000001EB51050000-0x000001EB51072000-memory.dmp

Filesize
136KB

Download
memory/2984-24-0x00000000005D0000-0x00000000005F7000-memory.dmp

Filesize
156KB

Download
memory/2984-25-0x0000000001020000-0x000000000104F000-memory.dmp

Filesize
188KB

Download
memory/2984-23-0x00000000005D0000-0x00000000005F7000-memory.dmp

Filesize
156KB

Download
memory/3524-22-0x0000000008A60000-0x0000000008B6B000-memory.dmp

Filesize
1.0MB

Download
memory/3524-45-0x0000000008280000-0x0000000008405000-memory.dmp

Filesize
1.5MB

Download
memory/3524-40-0x0000000008A60000-0x0000000008B6B000-memory.dmp

Filesize
1.0MB

Download