formbook | 4b8ad4a9d84c014358222a91b7a8d3b7f6b3a5853750d84e1d1e677a5bc9e9ff

Analysis

max time kernel
146s
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
29/08/2024, 14:17

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General

Target

c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe
Size

958KB
MD5

c8fda80e652d365bc5ceb4e065c51ee3
SHA1

c3e984e1e8a7421c17e3ecd3a4e3a4ba183ae562
SHA256

4b8ad4a9d84c014358222a91b7a8d3b7f6b3a5853750d84e1d1e677a5bc9e9ff
SHA512

edf9e0ca4d76dfe023a309e68ad06d25e960f6173b07d132908914a165f6f32b12280c0d400f86637594f3d28317170cfce134d0154346a4a6376a27acb9c50a
SSDEEP

12288:d/UQS1E+wSE1vfy2dJzOP9vExIH0h1zCShca7Av7Q292QOdGHRp69:dewSWfySzOPux0keSG62Dxz69

Score

10^/10

formbook ca credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

Decoy

jphmo.com

planbmx.com

jcygtpu.com

mindpathvideo.net

napavalleymysore.com

bitkanji.com

thecologne.zone

getreadyherenow6.info

cybersecfirst.com

celtflowers.com

zfk3.net

thecheapest.review

1b4tenhell.men

padaria2irmaos.com

azimitrdg.com

oldschoolnate.com

customhighperformance.com

classicrockandgems.com

marvinreynoso.com

stuffnsit.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 5 IoCs

rat

resource	yara_rule
behavioral2/memory/1696-4-0x0000000005980000-0x00000000059AA000-memory.dmp	formbook
behavioral2/memory/2124-9-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/2124-12-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/64-22-0x0000000001100000-0x000000000112A000-memory.dmp	formbook
behavioral2/memory/64-27-0x0000000001100000-0x000000000112A000-memory.dmp	formbook

Adds policy 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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Q2U0M6HH = "C:\\Program Files (x86)\\Ym658\\wv18zgfid.exe"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msiexec.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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1696 set thread context of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 2124 set thread context of 3452	2124	vbc.exe	56
PID 2124 set thread context of 3452	2124	vbc.exe	56
PID 64 set thread context of 3452	64	msiexec.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Ym658\wv18zgfid.exe	msiexec.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	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe
1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe
2124	vbc.exe
2124	vbc.exe
2124	vbc.exe
2124	vbc.exe
2124	vbc.exe
2124	vbc.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe
64	msiexec.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2124	vbc.exe
2124	vbc.exe
2124	vbc.exe
2124	vbc.exe
64	msiexec.exe
64	msiexec.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe
Token: SeDebugPrivilege	2124	vbc.exe
Token: SeDebugPrivilege	64	msiexec.exe
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3452	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 1696 wrote to memory of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 1696 wrote to memory of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 1696 wrote to memory of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 1696 wrote to memory of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 1696 wrote to memory of 2124	1696	c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe	86
PID 3452 wrote to memory of 64	3452	Explorer.EXE	92
PID 3452 wrote to memory of 64	3452	Explorer.EXE	92
PID 3452 wrote to memory of 64	3452	Explorer.EXE	92
PID 64 wrote to memory of 2308	64	msiexec.exe	94
PID 64 wrote to memory of 2308	64	msiexec.exe	94
PID 64 wrote to memory of 2308	64	msiexec.exe	94
PID 64 wrote to memory of 4888	64	msiexec.exe	109
PID 64 wrote to memory of 4888	64	msiexec.exe	109
PID 64 wrote to memory of 4888	64	msiexec.exe	109

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c8fda80e652d365bc5ceb4e065c51ee3_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1696
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2124
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Adds policy 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:64
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2308
- - 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:4888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

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

Scripting

T1064

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\53MR1SEE\53Mlogim.jpeg

Filesize
84KB

MD5
6a846b0fd21066712d37d711bf7e4336

SHA1
ed14c219640531d332f25e401ccf4cc44910ebc2

SHA256
cebcc3fed2e0b04ee181c670beb620b0bc069e6953ff22831c51c0f1f33437a0

SHA512
3d9121c170601e1a9f6d012e77297b4b8595a3f221b75dca7b10cdd87016e540678570811451aad697c3c8879fb8879591266e7f3276775edfad5bb241635822

Download Submit
C:\Users\Admin\AppData\Roaming\53MR1SEE\53Mlogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\53MR1SEE\53Mlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\53MR1SEE\53Mlogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/64-27-0x0000000001100000-0x000000000112A000-memory.dmp

Filesize
168KB

Download
memory/64-23-0x0000000003100000-0x000000000344A000-memory.dmp

Filesize
3.3MB

Download
memory/64-25-0x0000000002FD0000-0x0000000003063000-memory.dmp

Filesize
588KB

Download
memory/64-22-0x0000000001100000-0x000000000112A000-memory.dmp

Filesize
168KB

Download
memory/64-19-0x0000000000B10000-0x0000000000B22000-memory.dmp

Filesize
72KB

Download
memory/64-21-0x0000000000B10000-0x0000000000B22000-memory.dmp

Filesize
72KB

Download
memory/64-17-0x0000000000B10000-0x0000000000B22000-memory.dmp

Filesize
72KB

Download
memory/1696-3-0x0000000003470000-0x000000000347C000-memory.dmp

Filesize
48KB

Download
memory/1696-2-0x0000000003310000-0x000000000334A000-memory.dmp

Filesize
232KB

Download
memory/1696-5-0x0000000005C20000-0x0000000005CBC000-memory.dmp

Filesize
624KB

Download
memory/1696-1-0x0000000000FC0000-0x000000000107A000-memory.dmp

Filesize
744KB

Download
memory/1696-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/1696-4-0x0000000005980000-0x00000000059AA000-memory.dmp

Filesize
168KB

Download
memory/2124-12-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2124-9-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3452-24-0x0000000008AD0000-0x0000000008C5D000-memory.dmp

Filesize
1.6MB

Download
memory/3452-32-0x0000000008280000-0x0000000008352000-memory.dmp

Filesize
840KB

Download
memory/3452-31-0x0000000008280000-0x0000000008352000-memory.dmp

Filesize
840KB

Download
memory/3452-29-0x0000000008280000-0x0000000008352000-memory.dmp

Filesize
840KB

Download
memory/3452-14-0x0000000002DA0000-0x0000000002EE8000-memory.dmp

Filesize
1.3MB

Download
memory/3452-13-0x0000000008AD0000-0x0000000008C5D000-memory.dmp

Filesize
1.6MB

Download
memory/3452-10-0x0000000002DA0000-0x0000000002EE8000-memory.dmp

Filesize
1.3MB

Download