fakeav | c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037

Analysis

max time kernel
141s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-08-2024 02:45

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General

Target

c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe
Size

711KB
MD5

dbbc42f9a8a9562a4c72a40ac210970e
SHA1

33d9404f2a77f0b2b57b198bafa921fd006d3aa1
SHA256

c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037
SHA512

81cbaa39b4af6a7b75db683634ba3c0682b1ddd206e8fc716c5f00726a58e0cd04da735834d24ddc75f659cff1f796da860951fe545dd3c9991c79bd92a8e092
SSDEEP

12288:yoxejOONAM7GUC1Jr+4o628gx2Jw+tP3Jzm8JO6HXC3X+pd167QhEQO:hxY3NtGUmJr+4Obxd+tPZSZaiE6EhE

Score

10^/10

fakeav discovery fakeav persistence spyware

Malware Config

Signatures

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

FakeAV payload 1 IoCs

fakeav spyware

Processes:

resource	yara_rule
behavioral2/memory/984-5-0x0000000000400000-0x00000000004BD000-memory.dmp	fakeav

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE"	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE"	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

Drops file in System32 directory 2 IoCs

Processes:

c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

description	ioc	process
File created	C:\Windows\SysWOW64\CSRLT.EXE	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe
File opened for modification	C:\Windows\SysWOW64\CSRLT.EXE	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

Drops file in Windows directory 2 IoCs

Processes:

c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

description	ioc	process
File created	C:\Windows\MSBLT.EXE	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe
File opened for modification	C:\Windows\MSBLT.EXE	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe

C:\Users\Admin\AppData\Local\Temp\c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe
"C:\Users\Admin\AppData\Local\Temp\c3fb51d02b11362af58fca38f4c3929b6b97a803ac4bebf03594df62556a9037.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:984

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4464,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=2264 /prefetch:8
1⤵
PID:4664

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/984-0-0x0000000001F00000-0x0000000001F01000-memory.dmp

Filesize
4KB

Download
memory/984-5-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/984-7-0x0000000001F00000-0x0000000001F01000-memory.dmp

Filesize
4KB

Download