formbook | 8d278608d1d1c4c5b6c048020c23351e75203066af1ae1e63c5c5ac0170cd3de

Analysis

max time kernel
147s
max time network
137s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
30-08-2024 05:25

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General

Target

101 2043 5770 pdf.exe
Size

2.0MB
MD5

5e8e7dd95b3e592a44a3c61b7f8d91f8
SHA1

d829b9e1e99087d94f527f359184f65b608190c5
SHA256

8d278608d1d1c4c5b6c048020c23351e75203066af1ae1e63c5c5ac0170cd3de
SHA512

a9846b798e89596da64cfeb844a5dcb3eefa983972cc4433cb6861464a386900a9035428187e5ae4e8b666a70df7c147f48884c512ee5823bcd1275072fc8d60
SSDEEP

49152:tl2eQMj254Xra+qk6okjyjxKtyEAqVG13lwUWQdHt:76euw

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/2496-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2496-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2944-20-0x0000000000080000-0x00000000000AF000-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
996	powershell.exe

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\101 2043 5770 pdf = "C:\\Users\\Admin\\101 2043 5770 pdf.exe"	101 2043 5770 pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2496	2568	101 2043 5770 pdf.exe	35
PID 2496 set thread context of 1204	2496	wab.exe	21
PID 2944 set thread context of 1204	2944	wlanext.exe	21

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	wlanext.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3434294380-2554721341-1919518612-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
996	powershell.exe
2496	wab.exe
2496	wab.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2496	wab.exe
2496	wab.exe
2496	wab.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe
2944	wlanext.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	101 2043 5770 pdf.exe
Token: SeDebugPrivilege	996	powershell.exe
Token: SeDebugPrivilege	2496	wab.exe
Token: SeDebugPrivilege	2944	wlanext.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 996	2568	101 2043 5770 pdf.exe	31
PID 2568 wrote to memory of 996	2568	101 2043 5770 pdf.exe	31
PID 2568 wrote to memory of 996	2568	101 2043 5770 pdf.exe	31
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2728	2568	101 2043 5770 pdf.exe	33
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2488	2568	101 2043 5770 pdf.exe	34
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 2568 wrote to memory of 2496	2568	101 2043 5770 pdf.exe	35
PID 1204 wrote to memory of 2944	1204	Explorer.EXE	36
PID 1204 wrote to memory of 2944	1204	Explorer.EXE	36
PID 1204 wrote to memory of 2944	1204	Explorer.EXE	36
PID 1204 wrote to memory of 2944	1204	Explorer.EXE	36
PID 2944 wrote to memory of 2644	2944	wlanext.exe	38
PID 2944 wrote to memory of 2644	2944	wlanext.exe	38
PID 2944 wrote to memory of 2644	2944	wlanext.exe	38
PID 2944 wrote to memory of 2644	2944	wlanext.exe	38
PID 2944 wrote to memory of 2644	2944	wlanext.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\101 2043 5770 pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\101 2043 5770 pdf.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2568
- - 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:996
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
    3⤵
    PID:2728
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
    3⤵
    PID:2488
- - C:\Program Files (x86)\Windows Mail\wab.exe
    "C:\Program Files (x86)\Windows Mail\wab.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2496
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:2944
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2644

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

Discovery

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\Roaming\LK3BNUQ2\LK3logim.jpeg

Filesize
76KB

MD5
0b78c4a84426cb08a09116949520cdf9

SHA1
68730816c4d1378acb8ee7d03b2c180d16bcfaff

SHA256
f6bf398bd2d513040cf6cc8b35da42eeb0a273188c2e38b2f03352d2195e7ec4

SHA512
ad0338776fade5a555ddba74ba42e4175d6bc149532c70bdf2a7c5b15ef40769ee53b96252199c82446c8e48f4f9556c5574896fda4b894ef0175dda347e9bd6

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/996-4-0x000007FEF58AE000-0x000007FEF58AF000-memory.dmp

Filesize
4KB

Download
memory/996-5-0x000000001B670000-0x000000001B952000-memory.dmp

Filesize
2.9MB

Download
memory/996-6-0x00000000027A0000-0x00000000027A8000-memory.dmp

Filesize
32KB

Download
memory/996-8-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/996-7-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/996-9-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/996-11-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/1204-25-0x0000000005190000-0x0000000005312000-memory.dmp

Filesize
1.5MB

Download
memory/1204-17-0x0000000005190000-0x0000000005312000-memory.dmp

Filesize
1.5MB

Download
memory/1204-30-0x00000000075D0000-0x0000000007721000-memory.dmp

Filesize
1.3MB

Download
memory/2496-15-0x00000000002A0000-0x00000000002B4000-memory.dmp

Filesize
80KB

Download
memory/2496-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2496-13-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/2496-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2944-18-0x0000000000970000-0x0000000000986000-memory.dmp

Filesize
88KB

Download
memory/2944-19-0x0000000000970000-0x0000000000986000-memory.dmp

Filesize
88KB

Download
memory/2944-20-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download