formbook | 267cdbd24ba0c232c80967c7c39f454db0e59b6943836750a5cfbaf2540768d8

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 14:10

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General

Target

bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe
Size

381KB
MD5

bc0d9c5250c435e2b08aad396db5fbea
SHA1

8ef94d5400b6d10fa683ca6bad7efd19ef2282c3
SHA256

267cdbd24ba0c232c80967c7c39f454db0e59b6943836750a5cfbaf2540768d8
SHA512

70f75fa30063fdd3b0452e4d0b2936d27de2bfa3c7c5430bb96e532229211ffab167dcf32cfb552463c075b12f01427132c207f530026df710cd4e72174c6269
SSDEEP

6144:bDsrpmOp5fjFopppppppp4a5pppppppppppppppppppppppppppppppppppppppQ:bDsdRBGpppppppp/ppppppppppppppp

Score

10^/10

formbook mi credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

Decoy

deliris.net

tqcsi-yaran.com

sgrejg.info

vertical-boiler.com

10-56milanstreetmentone.com

electricoslaheroica.com

bombergersarchive.com

177vno.info

hydbad.com

amazonsignage.com

marcelkulhanek.com

purebeautyorganic.com

icerinkcoffee.com

hengshuiyafeng.com

improvereligion.com

hydroponics-aeroponics.com

botmatridee.com

summerfieldalignment.com

xeroaccountantmelbourne.net

babelgrim.net

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/2716-24-0x0000000005D40000-0x0000000005D6A000-memory.dmp	formbook
behavioral2/memory/4476-30-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.url	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.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

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\9RIXWBMX = "C:\\Program Files (x86)\\Ruv1xor5\\updatesbwd.exe"	explorer.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 4476 set thread context of 3440	4476	vbc.exe	56
PID 4140 set thread context of 3440	4140	explorer.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Ruv1xor5\updatesbwd.exe	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe
2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe
4476	vbc.exe
4476	vbc.exe
4476	vbc.exe
4476	vbc.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe
4140	explorer.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4476	vbc.exe
4476	vbc.exe
4476	vbc.exe
4140	explorer.exe
4140	explorer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe
Token: SeDebugPrivilege	4476	vbc.exe
Token: SeDebugPrivilege	4140	explorer.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3440	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2064	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	86
PID 2716 wrote to memory of 2064	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	86
PID 2716 wrote to memory of 2064	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	86
PID 2064 wrote to memory of 4556	2064	csc.exe	89
PID 2064 wrote to memory of 4556	2064	csc.exe	89
PID 2064 wrote to memory of 4556	2064	csc.exe	89
PID 2716 wrote to memory of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 2716 wrote to memory of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 2716 wrote to memory of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 2716 wrote to memory of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 2716 wrote to memory of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 2716 wrote to memory of 4476	2716	bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe	90
PID 3440 wrote to memory of 4140	3440	Explorer.EXE	91
PID 3440 wrote to memory of 4140	3440	Explorer.EXE	91
PID 3440 wrote to memory of 4140	3440	Explorer.EXE	91
PID 4140 wrote to memory of 412	4140	explorer.exe	96
PID 4140 wrote to memory of 412	4140	explorer.exe	96
PID 4140 wrote to memory of 412	4140	explorer.exe	96
PID 4140 wrote to memory of 4912	4140	explorer.exe	104
PID 4140 wrote to memory of 4912	4140	explorer.exe	104
PID 4140 wrote to memory of 4912	4140	explorer.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\bc0d9c5250c435e2b08aad396db5fbea_JaffaCakes118.exe"
  2⤵
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\nm5gejr5\nm5gejr5.cmdline"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES8453.tmp" "c:\Users\Admin\AppData\Local\Temp\nm5gejr5\CSC3DDECB51704D4F9FA62BF7A266A2262.TMP"
      4⤵
      System Location Discovery: System Language Discovery
      PID:4556
- - 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:4476
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:4140
- - 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:412
- - 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:4912

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\Local\Temp\RES8453.tmp

Filesize
1KB

MD5
bf85f2bce9b95fdecff64ef94cdb6ad2

SHA1
ed7138c22d4c8a5d1e7a36c5f9a2de98151033d6

SHA256
3f88e83cec23bf9ea677bb27e4fc02fdd792495370fad9481361930bf3897c41

SHA512
749db02f2fb1f5b59a5745d00ca82212ec8f799b2ff03f5c72472fc950331a3620b37d0b3ea9357e6473878e4d68e76cdbde9af9f26130f7c8cfc259e0730ee7

Download Submit
C:\Users\Admin\AppData\Local\Temp\nm5gejr5\nm5gejr5.dll

Filesize
14KB

MD5
48fd95da7eef4837862051a1823ed7a4

SHA1
bb9a6fd2460c064135769e963cddf1df60e16da7

SHA256
c5f6f2a048cfd00ee5aa36edca1c7600fd0591736ac4e0a568e8230156cc8370

SHA512
90539027a97febadb626c1417c83d92baf76bc8538774fafb58beba385a3826ca1a02a1b1bfd02c12b64db7d9d52a31e49b03b275ed5527eb4e15808ee794c57

Download Submit
C:\Users\Admin\AppData\Local\Temp\nm5gejr5\nm5gejr5.pdb

Filesize
49KB

MD5
a3a9e5f6e63a5e82d1364a620a9e921e

SHA1
a205a44559a3d32ca2df574b5c228afb60cf48e8

SHA256
0240d8d1bf7c1e70d361b75a921901019bb09cef2bd3057ca03e93e24852f136

SHA512
5197a1d83204029d256ea28b1101ad0e5698a13c60200adb8dc9455712813aa848cd9919f6d8577b71976efbaf2a482cd9f3df319d2c1c0f3dc0f3752999b787

Download Submit
C:\Users\Admin\AppData\Roaming\-NLQ125E\-NLlogim.jpeg

Filesize
81KB

MD5
8fc99b84514f05c8d9e4c087d3f54ffb

SHA1
e43b9f5962da015cb3e1eee87ef26be1fa7eb7eb

SHA256
d5c8472327d1e0bd7ac1afacaa6f690d385b2f7391c2ed3ed41349156681b724

SHA512
e9d2fec494978e362b3dc9940343a2526a759367fc14df9dca7e80f081b14dc9a624c93578cab84a716b0eb745db8f934b281dd0fd7d986574a780dd6e22dd38

Download Submit
C:\Users\Admin\AppData\Roaming\-NLQ125E\-NLlogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\-NLQ125E\-NLlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\-NLQ125E\-NLlogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\nm5gejr5\CSC3DDECB51704D4F9FA62BF7A266A2262.TMP

Filesize
1KB

MD5
33760a46bd9a3103beef7b18f40afbd9

SHA1
2389c3600911c254939eac7188832ad61b41374e

SHA256
e35ec285fc8d237f9a9939454b5331d7ca6ba674aeee821200ab5f0deb12e119

SHA512
f91a4f945f097da5b952f2147ed35a2d8e1b27ed85ae7b972ebfa2cdcd7253dad7790fa49a1a8e39655944f6ae7486de606b68ad9414feaf9932bc45b135bdda

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\nm5gejr5\nm5gejr5.0.cs

Filesize
26KB

MD5
034b7ff6021dabbe765304758ae537dc

SHA1
42c9be44efa31bd97e496df6b3dd051f7f735e5e

SHA256
ed8359eec525cd11d29b30119d345617a26e10eb6034f048d8bf7f71863a5b78

SHA512
1e792efa914b27a1102f658ef0394963c61a00b068e9024b8543eb9d68363124bf063e71cc0365977e43fb360e8b9d252ce560bb8c62f7185d1340da01b33693

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\nm5gejr5\nm5gejr5.cmdline

Filesize
248B

MD5
7c47f37e906e249d619c3be420845d47

SHA1
3f2f414d3e7a1525477bb362d3a52405481d7289

SHA256
0cb94f77dd1b7ece71c38a634a9410357914d206bea4046ba5078254d96160ec

SHA512
78ae5e682bdec413b0797ea709d1f48cc6dec12d42cebed5fdfa42e2a073fe9882b3c3b0d6143510752c9faa383bf814372c664a1505a2d5acc94a4bedb8b37b

Download Submit
memory/2716-25-0x0000000005FC0000-0x000000000605C000-memory.dmp

Filesize
624KB

Download
memory/2716-17-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download
memory/2716-24-0x0000000005D40000-0x0000000005D6A000-memory.dmp

Filesize
168KB

Download
memory/2716-0-0x000000007482E000-0x000000007482F000-memory.dmp

Filesize
4KB

Download
memory/2716-28-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/2716-1-0x0000000000D90000-0x0000000000DF6000-memory.dmp

Filesize
408KB

Download
memory/2716-5-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/2716-19-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/2716-21-0x0000000005C10000-0x0000000005C1C000-memory.dmp

Filesize
48KB

Download
memory/2716-20-0x0000000005BD0000-0x0000000005C0A000-memory.dmp

Filesize
232KB

Download
memory/3440-31-0x00000000088E0000-0x0000000008A7F000-memory.dmp

Filesize
1.6MB

Download
memory/3440-37-0x00000000088E0000-0x0000000008A7F000-memory.dmp

Filesize
1.6MB

Download
memory/3440-41-0x0000000008E30000-0x0000000008F8B000-memory.dmp

Filesize
1.4MB

Download
memory/4140-36-0x0000000000920000-0x0000000000D53000-memory.dmp

Filesize
4.2MB

Download
memory/4140-33-0x0000000000920000-0x0000000000D53000-memory.dmp

Filesize
4.2MB

Download
memory/4476-32-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/4476-30-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download