formbook | 2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390

Analysis

max time kernel
148s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240729-en
resource tags

arch:x64arch:x86image:win10v2004-20240729-enlocale:en-usos:windows10-2004-x64system
submitted
29/07/2024, 14:10

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General

Target

4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe
Size

463KB
MD5

4b21b233b4fb9b116477fb24cdd8e376
SHA1

8e88400d1292aac8462b0413e039fd16a95112cd
SHA256

2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390
SHA512

a0d1871e551fc1cd45e7bc8e05841a79aa8e59743425a56a66ee3bb8e68c55dcaa395bd33f5a5eb4629f97c80a428055b966ad0af1c471742764c79b6de3e19e
SSDEEP

6144:R5iXq4NYHjLS1hxsvAwC0LhvBb4f5YghFZByCgWfF5fJloa:2x2HUhuvj8fBZBzv5fo

Score

10^/10

formbook a43 defense_evasion discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a43

Decoy

lanaztouch.com

gse-global-p.com

seniorcareconsultant.info

jmstodocasero.com

deyigule.com

flourishmouth.com

morgantownspiritwear.com

edyscleaning.com

simplifyhydro.com

global-water-solution.com

associacaocasafraterna.com

violindna.com

scvipl.com

secure1advancedemedia.com

bcroadside.com

bllccoffee.com

anodesigns.com

ms00852.com

privatecomfortinghands.com

how2adult101.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1664-204-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1664-207-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

Abuse InstallUtil to proxy execution of malicious code.

defense_evasion

InstallUtil

T1218.004

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1664	InstallUtil.exe

Loads dropped DLL 1 IoCs

pid	Process
4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4132 set thread context of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 1664 set thread context of 3388	1664	InstallUtil.exe	55
PID 3316 set thread context of 3388	3316	colorcpl.exe	55

System Location Discovery: System Language Discovery 1 TTPs 3 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	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe
3316	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1664	InstallUtil.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
3316	colorcpl.exe
3316	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe
Token: SeDebugPrivilege	1664	InstallUtil.exe
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE
Token: SeDebugPrivilege	3316	colorcpl.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3388	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4132 wrote to memory of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 4132 wrote to memory of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 4132 wrote to memory of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 4132 wrote to memory of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 4132 wrote to memory of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 4132 wrote to memory of 1664	4132	4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe	85
PID 3388 wrote to memory of 3316	3388	Explorer.EXE	86
PID 3388 wrote to memory of 3316	3388	Explorer.EXE	86
PID 3388 wrote to memory of 3316	3388	Explorer.EXE	86
PID 3316 wrote to memory of 4508	3316	colorcpl.exe	87
PID 3316 wrote to memory of 4508	3316	colorcpl.exe	87
PID 3316 wrote to memory of 4508	3316	colorcpl.exe	87

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Users\Admin\AppData\Local\Temp\4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\4b21b233b4fb9b116477fb24cdd8e376_JaffaCakes118.exe"
  2⤵
  - System Binary Proxy Execution: InstallUtil
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4132
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1664
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3316
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

System Binary Proxy Execution

T1218

InstallUtil

T1218.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\b1f92ac9-345d-4ee6-83d6-512dab76f3b9\i.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
memory/1664-204-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1664-205-0x00000000013A0000-0x00000000016EA000-memory.dmp

Filesize
3.3MB

Download
memory/1664-207-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1664-208-0x0000000001340000-0x0000000001354000-memory.dmp

Filesize
80KB

Download
memory/3316-214-0x00000000009F0000-0x0000000000A09000-memory.dmp

Filesize
100KB

Download
memory/3388-224-0x0000000002D30000-0x0000000002DCD000-memory.dmp

Filesize
628KB

Download
memory/3388-220-0x0000000002D30000-0x0000000002DCD000-memory.dmp

Filesize
628KB

Download
memory/3388-217-0x0000000003200000-0x00000000032C0000-memory.dmp

Filesize
768KB

Download
memory/3388-209-0x0000000003200000-0x00000000032C0000-memory.dmp

Filesize
768KB

Download
memory/4132-44-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-26-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-38-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-34-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-76-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-74-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-73-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-70-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-69-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-66-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-64-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-60-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-58-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-56-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-52-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-50-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-48-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-6-0x00000000057C0000-0x0000000005852000-memory.dmp

Filesize
584KB

Download
memory/4132-42-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-40-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-32-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-31-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-28-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-36-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-25-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-22-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-20-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-62-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-54-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-46-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-18-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-16-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-15-0x0000000003240000-0x0000000003266000-memory.dmp

Filesize
152KB

Download
memory/4132-14-0x0000000073790000-0x0000000073819000-memory.dmp

Filesize
548KB

Download
memory/4132-195-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/4132-5-0x0000000005690000-0x00000000056D4000-memory.dmp

Filesize
272KB

Download
memory/4132-4-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/4132-196-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/4132-197-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/4132-199-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/4132-200-0x0000000007560000-0x000000000756C000-memory.dmp

Filesize
48KB

Download
memory/4132-211-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/4132-3-0x0000000003240000-0x000000000326C000-memory.dmp

Filesize
176KB

Download
memory/4132-2-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/4132-1-0x0000000000C60000-0x0000000000CDA000-memory.dmp

Filesize
488KB

Download
memory/4132-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download