formbook | 41ed6a6bb84eb0677d93b85dc94532cbe4736a5cd251f03f0241efc428029caf

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
behavioral1/memory/748-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/748-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2948-23-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
18	2948	rundll32.exe

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
2332	powershell.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\af9ec0a3038bbe105c8f81d9f501364b = "C:\\Users\\Admin\\af9ec0a3038bbe105c8f81d9f501364b.exe"	af9ec0a3038bbe105c8f81d9f501364b.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 748 set thread context of 1252	748	wmplayer.exe	20
PID 2948 set thread context of 1252	2948	rundll32.exe	20

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 1 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	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-457978338-2990298471-2379561640-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2332	powershell.exe
748	wmplayer.exe
748	wmplayer.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1252	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
748	wmplayer.exe
748	wmplayer.exe
748	wmplayer.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe
2948	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	af9ec0a3038bbe105c8f81d9f501364b.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	748	wmplayer.exe
Token: SeDebugPrivilege	2948	rundll32.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2332	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	30
PID 2720 wrote to memory of 2332	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	30
PID 2720 wrote to memory of 2332	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	30
PID 2720 wrote to memory of 2760	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	32
PID 2720 wrote to memory of 2760	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	32
PID 2720 wrote to memory of 2760	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	32
PID 2720 wrote to memory of 2760	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	32
PID 2720 wrote to memory of 2760	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	32
PID 2720 wrote to memory of 2768	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	33
PID 2720 wrote to memory of 2768	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	33
PID 2720 wrote to memory of 2768	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	33
PID 2720 wrote to memory of 2768	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	33
PID 2720 wrote to memory of 2768	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	33
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 2720 wrote to memory of 748	2720	af9ec0a3038bbe105c8f81d9f501364b.exe	34
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 1252 wrote to memory of 2948	1252	Explorer.EXE	35
PID 2948 wrote to memory of 1572	2948	rundll32.exe	36
PID 2948 wrote to memory of 1572	2948	rundll32.exe	36
PID 2948 wrote to memory of 1572	2948	rundll32.exe	36
PID 2948 wrote to memory of 1572	2948	rundll32.exe	36
PID 2948 wrote to memory of 1572	2948	rundll32.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Users\Admin\AppData\Local\Temp\af9ec0a3038bbe105c8f81d9f501364b.exe
  "C:\Users\Admin\AppData\Local\Temp\af9ec0a3038bbe105c8f81d9f501364b.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2720
- - 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:2332
- - C:\Windows\System32\calc.exe
    "C:\Windows\System32\calc.exe"
    3⤵
    PID:2760
- - C:\Windows\System32\svchost.exe
    "C:\Windows\System32\svchost.exe"
    3⤵
    PID:2768
- - 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:748
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Blocklisted process makes network request
  - 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:2948
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1572

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

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

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Downloads

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

Filesize
69KB

MD5
40d3f7e4787801f0654c94d3477f591a

SHA1
ddde284ad00ea906b4d7c337fc4a2cf4e3e5313f

SHA256
36c9a7ace7a4a5439f46afc7cb05da3df711e02deafbee120ba6da1f9bb9d378

SHA512
7d7772b820111bfb2b2690089f3f46b2412ef7cd66a56e179d6ae5edfb04fb9b5b2713b9d4ad6396a33f1799651e2d89801d80d05182dcbdf908e0ff348c3257

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\LK3logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

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

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/748-13-0x0000000000830000-0x0000000000B33000-memory.dmp

Filesize
3.0MB

Download
memory/748-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/748-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/748-16-0x0000000000200000-0x0000000000214000-memory.dmp

Filesize
80KB

Download
memory/1252-27-0x00000000065A0000-0x00000000066DC000-memory.dmp

Filesize
1.2MB

Download
memory/1252-14-0x00000000039A0000-0x0000000003AA0000-memory.dmp

Filesize
1024KB

Download
memory/1252-29-0x00000000072D0000-0x000000000745A000-memory.dmp

Filesize
1.5MB

Download
memory/1252-17-0x00000000065A0000-0x00000000066DC000-memory.dmp

Filesize
1.2MB

Download
memory/2332-18-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-11-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-4-0x000007FEF621E000-0x000007FEF621F000-memory.dmp

Filesize
4KB

Download
memory/2332-9-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-8-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-7-0x0000000002220000-0x0000000002228000-memory.dmp

Filesize
32KB

Download
memory/2332-5-0x000000001B470000-0x000000001B752000-memory.dmp

Filesize
2.9MB

Download
memory/2948-19-0x0000000000250000-0x000000000025E000-memory.dmp

Filesize
56KB

Download
memory/2948-20-0x0000000000250000-0x000000000025E000-memory.dmp

Filesize
56KB

Download
memory/2948-22-0x0000000000250000-0x000000000025E000-memory.dmp

Filesize
56KB

Download
memory/2948-23-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download