fakeav | 4c796007891d82d550c5d66d5122ffcafebfa72d8c228e77eedd0bea51d7f239

Resubmissions

08/03/2025, 09:43

250308-lqbntsvvcx 10

03/03/2025, 19:12

250303-xwp9yswtgy 10

Analysis

max time kernel
141s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2025, 09:43

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General

Target

JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
Size

755KB
MD5

48a8e80c91a67d3baf17365b04728600
SHA1

ecc7264661292e9d0952d19bdcb07e60fd6e3b60
SHA256

4c796007891d82d550c5d66d5122ffcafebfa72d8c228e77eedd0bea51d7f239
SHA512

ddf959dee9dec3bad5ab10b0ba2249d020c64b0eb027084cdad48fbb20176821780ee85d6a46236a8abce77219956cc166aeb0e99d4d14c001e2c4522183d308
SSDEEP

12288:xoxejOONAM7GUC1Jr+4o628gx2Jw+tP3Jzm8JOxGXCJdw/oX+pd167QhEQO:2xY3NtGUmJr+4Obxd+tPZSZw/oE6EhE

Score

10^/10

fakeav discovery fakeav persistence spyware upx

Malware Config

Signatures

FakeAV, RogueAntivirus
FakeAV or Rogue AntiVirus is a class of malware that displays false alert messages.
fakeav spyware fakeav
Fakeav family
fakeav

FakeAV payload 1 IoCs

fakeav spyware

resource	yara_rule
behavioral2/memory/312-17-0x0000000000400000-0x00000000004C8000-memory.dmp	fakeav

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Control Panel\International\Geo\Nation	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe

Executes dropped EXE 1 IoCs

pid	Process
5080	KeyGen.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE"	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE"	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\CSRLT.EXE	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
File opened for modification	C:\Windows\SysWOW64\CSRLT.EXE	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0007000000023d5c-9.dat	upx
behavioral2/memory/5080-16-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/5080-18-0x0000000000400000-0x000000000041F000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\MSBLT.EXE	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
File opened for modification	C:\Windows\MSBLT.EXE	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
File created	C:\Windows\KeyGen.exe	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KeyGen.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5080	KeyGen.exe
5080	KeyGen.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 312 wrote to memory of 5080	312	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe	85
PID 312 wrote to memory of 5080	312	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe	85
PID 312 wrote to memory of 5080	312	JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48a8e80c91a67d3baf17365b04728600.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:312
- C:\Windows\KeyGen.exe
  "C:\Windows\KeyGen.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5080

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\KeyGen.exe

Filesize
52KB

MD5
e3c7d489013b51c671aa79c9068a2a00

SHA1
deed13e52afcc9fd2ef326fb6b0aa4bf7fcf14be

SHA256
5ea232ac5ebca4584f8689d5a1ed466404272a5c5496f41934537504368b5da2

SHA512
18a31ffcc796d6352142374dc0e12d83b9b46d56069a5db26a38b0f6a133302f13d7064bfe9bc16e7a705aeeb2cec2d654863d92280a6085c8202a3c8096b240

Download Submit
memory/312-0-0x0000000001F80000-0x0000000001F81000-memory.dmp

Filesize
4KB

Download
memory/312-17-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/5080-16-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/5080-18-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads