formbook | 8a6387c525e0279b36c6b87b799d9ce7f3cc7d0965d27f6b4af2eb9b8993248e

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 13:35

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General

Target

view.exe
Size

1.2MB
MD5

13c50d12714b8d5177d53e6f0980346d
SHA1

c3efaf564476634a8baca98028ffa9d1918a0a4c
SHA256

ca6bf064da10636ada68b69d36ee69de1c794e71928adeeb3781bef7ce6d4c71
SHA512

f411aba44e6d8a91abb204c397203a01d5393056317f57b9b73145b4d71aee535269f4fc47cdf87a6212d2ef193683b84f75f53042327dc1ef4744cd0ddba06d
SSDEEP

24576:qnmp0ual3hWk9mmE23MUxFx6F2u6KBfylcxWNXjnrZBhPHl+tcxWOjqwNSmBO9:fwv1EOBFeea0N/ZB5lM6WO+1mY

Score

10^/10

formbook hx319 credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

hx319

Decoy

dcxinc.biz

synergiescorpsesprit.com

opvca.com

7907f.com

hunch.info

gxysdc.com

khu6.com

zimmer-ulm.com

bodyfacial.com

shanoski.net

hellcase.market

usdragonz.com

ecologisticperu.com

bitliga.net

iddaocc.com

houstoncarrelief.com

thetravelists.com

excellcium-promotion.com

brendenguthrie.com

cooperateget.com

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 2 IoCs

rat

resource	yara_rule
behavioral2/memory/876-13-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/876-19-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
1904	Ikdibakelehuntum.exe
876	Ikdibakelehuntum.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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ikdibakelehuntum = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\Ikdibakelehuntum.txt \| cmd"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UFZXNBRHSZCL = "C:\\Program Files (x86)\\Kv2sdbdj0\\taskhost1bf.exe"	WWAHost.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1904 set thread context of 876	1904	Ikdibakelehuntum.exe	88
PID 876 set thread context of 3524	876	Ikdibakelehuntum.exe	56
PID 3136 set thread context of 3524	3136	WWAHost.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Kv2sdbdj0\taskhost1bf.exe	WWAHost.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WWAHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	view.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ikdibakelehuntum.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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	WWAHost.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
876	Ikdibakelehuntum.exe
876	Ikdibakelehuntum.exe
876	Ikdibakelehuntum.exe
876	Ikdibakelehuntum.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe
3136	WWAHost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
876	Ikdibakelehuntum.exe
876	Ikdibakelehuntum.exe
876	Ikdibakelehuntum.exe
3136	WWAHost.exe
3136	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4920	view.exe
Token: SeDebugPrivilege	1904	Ikdibakelehuntum.exe
Token: SeDebugPrivilege	876	Ikdibakelehuntum.exe
Token: SeDebugPrivilege	3136	WWAHost.exe
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4168	4920	view.exe	82
PID 4920 wrote to memory of 4168	4920	view.exe	82
PID 4920 wrote to memory of 4168	4920	view.exe	82
PID 4168 wrote to memory of 1904	4168	cmd.exe	84
PID 4168 wrote to memory of 1904	4168	cmd.exe	84
PID 4168 wrote to memory of 1904	4168	cmd.exe	84
PID 1904 wrote to memory of 436	1904	Ikdibakelehuntum.exe	85
PID 1904 wrote to memory of 436	1904	Ikdibakelehuntum.exe	85
PID 1904 wrote to memory of 436	1904	Ikdibakelehuntum.exe	85
PID 436 wrote to memory of 5020	436	cmd.exe	87
PID 436 wrote to memory of 5020	436	cmd.exe	87
PID 436 wrote to memory of 5020	436	cmd.exe	87
PID 1904 wrote to memory of 876	1904	Ikdibakelehuntum.exe	88
PID 1904 wrote to memory of 876	1904	Ikdibakelehuntum.exe	88
PID 1904 wrote to memory of 876	1904	Ikdibakelehuntum.exe	88
PID 1904 wrote to memory of 876	1904	Ikdibakelehuntum.exe	88
PID 1904 wrote to memory of 876	1904	Ikdibakelehuntum.exe	88
PID 1904 wrote to memory of 876	1904	Ikdibakelehuntum.exe	88
PID 3524 wrote to memory of 3136	3524	Explorer.EXE	90
PID 3524 wrote to memory of 3136	3524	Explorer.EXE	90
PID 3524 wrote to memory of 3136	3524	Explorer.EXE	90
PID 3136 wrote to memory of 2408	3136	WWAHost.exe	96
PID 3136 wrote to memory of 2408	3136	WWAHost.exe	96
PID 3136 wrote to memory of 2408	3136	WWAHost.exe	96
PID 3136 wrote to memory of 1032	3136	WWAHost.exe	103
PID 3136 wrote to memory of 1032	3136	WWAHost.exe	103
PID 3136 wrote to memory of 1032	3136	WWAHost.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\view.exe
  "C:\Users\Admin\AppData\Local\Temp\view.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4920
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4168
  - - C:\Users\Admin\Desktop\Ikdibakelehuntum.exe
      "C:\Users\Admin\Desktop\Ikdibakelehuntum.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1904
    - - C:\Windows\SysWOW64\cmd.exe
        
        "cmd"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:436
      - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Ikdibakelehuntum" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\Ikdibakelehuntum.txt" | cmd"
        6⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:5020
    - - C:\Users\Admin\Desktop\Ikdibakelehuntum.exe
        
        "C:\Users\Admin\Desktop\Ikdibakelehuntum.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:876
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4700
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - 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:3136
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\Desktop\Ikdibakelehuntum.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2408
- - 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:1032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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 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\Roaming\NN11N28C\NN1logim.jpeg

Filesize
78KB

MD5
7326be91e05335992a34a2423a30aced

SHA1
1076aa43cba5a01c6862167793fa475d39c64a78

SHA256
67292e1be08fcc909a8c40801f19274f67e5d12cfa3aa698b447b2824fdbd2be

SHA512
72cc6768f8d2c30bda6fa1754975f3e2744eb9a8701eedcacd7aa98164eefd41f5ba66702677b3d6a1eb3dd3ae957a79a2ecc4aeb246ba0fa2bcdb65ef698099

Download Submit
C:\Users\Admin\AppData\Roaming\NN11N28C\NN1logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\NN11N28C\NN1logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\NN11N28C\NN1logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
C:\Users\Admin\Desktop\Ikdibakelehuntum.exe

Filesize
1.2MB

MD5
13c50d12714b8d5177d53e6f0980346d

SHA1
c3efaf564476634a8baca98028ffa9d1918a0a4c

SHA256
ca6bf064da10636ada68b69d36ee69de1c794e71928adeeb3781bef7ce6d4c71

SHA512
f411aba44e6d8a91abb204c397203a01d5393056317f57b9b73145b4d71aee535269f4fc47cdf87a6212d2ef193683b84f75f53042327dc1ef4744cd0ddba06d

Download Submit
memory/876-17-0x0000000001590000-0x00000000018DA000-memory.dmp

Filesize
3.3MB

Download
memory/876-19-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/876-13-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/876-20-0x0000000001050000-0x0000000001064000-memory.dmp

Filesize
80KB

Download
memory/1904-10-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download
memory/1904-16-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download
memory/1904-7-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download
memory/1904-8-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download
memory/3136-22-0x0000000000360000-0x000000000043C000-memory.dmp

Filesize
880KB

Download
memory/3136-24-0x0000000000360000-0x000000000043C000-memory.dmp

Filesize
880KB

Download
memory/3524-21-0x0000000008780000-0x0000000008908000-memory.dmp

Filesize
1.5MB

Download
memory/3524-25-0x0000000008780000-0x0000000008908000-memory.dmp

Filesize
1.5MB

Download
memory/3524-29-0x0000000009230000-0x0000000009370000-memory.dmp

Filesize
1.2MB

Download
memory/4920-12-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download
memory/4920-0-0x00000000754E2000-0x00000000754E3000-memory.dmp

Filesize
4KB

Download
memory/4920-2-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download
memory/4920-1-0x00000000754E0000-0x0000000075A91000-memory.dmp

Filesize
5.7MB

Download