formbook | 28c5ed49a415babc182c3c990ec24e5a860fe7b51b0fc768cccae59a08f8a26f

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 10:41

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General

Target

eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
Size

989KB
MD5

eb29c382d8a70b5d78802d04ec5623e4
SHA1

0e74128bb6f4c5a75596cfe87a6df9e09f35d1b8
SHA256

28c5ed49a415babc182c3c990ec24e5a860fe7b51b0fc768cccae59a08f8a26f
SHA512

498f2b08468ef18cbb10a070cce05969f84ccfbe800eea1523e5bae37dba5a8d2fde515cc16bb47187311f779b1a84964940f4d8b0cbf8aeb95aa54bec7fede3
SSDEEP

24576:Mtb20pkaCqT5TBWgNQ7aIkX04z6ZQrhk6A:1Vg5tQ7aIktzCQC5

Score

10^/10

formbook war credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

war

Decoy

baoeasy.net

elblogdelagenteinmobiliario.com

jxnklx.com

styleweit.com

usmivki.net

gxxmybkw.com

thrifty.tools

oslomatch.com

housten.help

zhituwangluo.com

cagili.info

fanniesandbums.com

metalpay.exchange

swissden.com

padreisla2.com

flysat-stream.com

kadabradelivery.com

mumoswolrd.com

nti.ltd

shiretokoserai.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/3988-8-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/3988-11-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XRZXZFQ8Z = "C:\\Program Files (x86)\\Adnmdb6\\ftj8_rqpx.exe"	cmmon32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4848 set thread context of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 3808 set thread context of 3444	3808	cmmon32.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adnmdb6\ftj8_rqpx.exe	cmmon32.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe
3808	cmmon32.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3808	cmmon32.exe
3808	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3808	cmmon32.exe
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 4848 wrote to memory of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 4848 wrote to memory of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 4848 wrote to memory of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 4848 wrote to memory of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 4848 wrote to memory of 3988	4848	eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe	85
PID 3808 wrote to memory of 2776	3808	cmmon32.exe	89
PID 3808 wrote to memory of 2776	3808	cmmon32.exe	89
PID 3808 wrote to memory of 2776	3808	cmmon32.exe	89
PID 3808 wrote to memory of 4316	3808	cmmon32.exe	98
PID 3808 wrote to memory of 4316	3808	cmmon32.exe	98
PID 3808 wrote to memory of 4316	3808	cmmon32.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\eb29c382d8a70b5d78802d04ec5623e4_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\SysWOW64\WerFault.exe
    "C:\Windows\SysWOW64\WerFault.exe"
    3⤵
    PID:3988
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:3808
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\WerFault.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2776
- - 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:4316

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\Local\Temp\autD13A.tmp

Filesize
167KB

MD5
809dd59315e8ddc7b8620dcbf40e600f

SHA1
bbdd679ef59ada9b40c7c648e8401596e480b962

SHA256
801e944ab6513594fffb38572788b6db73e087f4b83555916aec34b2d9ec8971

SHA512
06aba4ede1856b652cb85f022a0b29f008c09969d9979aa0fbd1349cce584041b280f339030d096e7877e0e15339e3812dd6aa2a7242302896aac66985e8a11b

Download Submit
C:\Users\Admin\AppData\Roaming\622116PE\622logim.jpeg

Filesize
85KB

MD5
e5759afbbc84c8a8b4bf7af451bcf3b5

SHA1
b5c3d38103fc94e6d9f532c7ff682e7cc70eb11d

SHA256
4a9189e01b608096fcfc0ef0c7a25c41a5408a0ad3dd1e33eb4c71d1400bb00f

SHA512
efa53da133de4ad840441c925b779dfd899ce47973a9faed2fd1456d149d83d25da0822bb2c20d2672467874bdb8dd9c7d800a5b0dfb2d5b5b4ded1bee61b745

Download Submit
C:\Users\Admin\AppData\Roaming\622116PE\622logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\622116PE\622logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\622116PE\622logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/3444-32-0x00000000081B0000-0x00000000082C1000-memory.dmp

Filesize
1.1MB

Download
memory/3444-17-0x00000000081B0000-0x00000000082C1000-memory.dmp

Filesize
1.1MB

Download
memory/3444-15-0x00000000081B0000-0x00000000082C1000-memory.dmp

Filesize
1.1MB

Download
memory/3808-13-0x0000000002730000-0x00000000027C3000-memory.dmp

Filesize
588KB

Download
memory/3808-10-0x00000000029C0000-0x0000000002D0A000-memory.dmp

Filesize
3.3MB

Download
memory/3808-9-0x0000000000160000-0x000000000016C000-memory.dmp

Filesize
48KB

Download
memory/3988-11-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3988-8-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download