ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-05-2024 04:29

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General

Target

ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe
Size

145KB
MD5

0073fe81341b841db81257b66c7c8043
SHA1

dd7eb7e5c0953bf0178efc0971f17a57b3330f0c
SHA256

ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d
SHA512

07dc879ca0709bb6a9394d05bdc34aeb02cfaf56fd10d5931f09ce91336a308a09f30dbee39fc9cba5df16a52dd6d272c84cfd7506412946ae4a4a8554e94e98
SSDEEP

3072:ASABNx6hb4RoI4yMIqyphIOfVP3otljtqWkBNp4u1kH8im:Al6ZiiOSP0BL4wZ

Score

9^/10

bootkit persistence spyware stealer upx

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3220-11-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3220-13-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3220-14-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3220-15-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3876-7-0x0000000000400000-0x0000000000427000-memory.dmp	UPX
\??\c:\gwcrs\kmbcy.dll	UPX
behavioral2/memory/3220-10-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3220-11-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3220-13-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3220-14-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3220-15-0x0000000010000000-0x0000000010024000-memory.dmp	UPX

Blocklisted process makes network request 8 IoCs

Processes:

rundll32.exe

flow	pid	process
17	3220	rundll32.exe
48	3220	rundll32.exe
49	3220	rundll32.exe
50	3220	rundll32.exe
51	3220	rundll32.exe
53	3220	rundll32.exe
59	3220	rundll32.exe
61	3220	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
\??\c:\gwcrs\kmbcy.dll	acprotect

Deletes itself 1 IoCs

Processes:

smqmo.exe

pid process

3876 smqmo.exe
Executes dropped EXE 1 IoCs

Processes:

smqmo.exe

pid process

3876 smqmo.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3220 rundll32.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

pid	process
3876	smqmo.exe

pid	process
3876	smqmo.exe

pid	process
3220	rundll32.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
\??\c:\gwcrs\kmbcy.dll	upx
behavioral2/memory/3220-10-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3220-11-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3220-13-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3220-14-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3220-15-0x0000000010000000-0x0000000010024000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\gwcrs\\kmbcy.dll\",DoVirusScan"	rundll32.exe

Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

File opened (read-only) \??\a: rundll32.exe
File opened (read-only) \??\b: rundll32.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe

description	ioc	process
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2824 PING.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rundll32.exe

pid process

3220 rundll32.exe
3220 rundll32.exe
3220 rundll32.exe
3220 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 3220 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exesmqmo.exe

pid process

468 ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe
3876 smqmo.exe

pid	process
2824	PING.EXE

pid	process
3220	rundll32.exe
3220	rundll32.exe
3220	rundll32.exe
3220	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	3220	rundll32.exe

pid	process
468	ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe
3876	smqmo.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.execmd.exesmqmo.exe

description	pid	process	target process
PID 468 wrote to memory of 5008	468	ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe	cmd.exe
PID 468 wrote to memory of 5008	468	ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe	cmd.exe
PID 468 wrote to memory of 5008	468	ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe	cmd.exe
PID 5008 wrote to memory of 2824	5008	cmd.exe	PING.EXE
PID 5008 wrote to memory of 2824	5008	cmd.exe	PING.EXE
PID 5008 wrote to memory of 2824	5008	cmd.exe	PING.EXE
PID 5008 wrote to memory of 3876	5008	cmd.exe	smqmo.exe
PID 5008 wrote to memory of 3876	5008	cmd.exe	smqmo.exe
PID 5008 wrote to memory of 3876	5008	cmd.exe	smqmo.exe
PID 3876 wrote to memory of 3220	3876	smqmo.exe	rundll32.exe
PID 3876 wrote to memory of 3220	3876	smqmo.exe	rundll32.exe
PID 3876 wrote to memory of 3220	3876	smqmo.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe
"C:\Users\Admin\AppData\Local\Temp\ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\smqmo.exe "C:\Users\Admin\AppData\Local\Temp\ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2824
- - \??\c:\smqmo.exe
    c:\smqmo.exe "C:\Users\Admin\AppData\Local\Temp\ed5a44e5c560f49e97febf48a18691b79b69c75339c9b503368d6d56823a678d.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3876
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\gwcrs\kmbcy.dll",DoVirusScan c:\smqmo.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3220

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 --no-appcompat-clear --mojo-platform-channel-handle=3744 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:3008

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\smqmo.exe

Filesize
145KB

MD5
d08ce15f55cf08cf58a628eaa9e84fa8

SHA1
676fae527df194d84d05ae7313fb1ebfc40bcd4a

SHA256
df3104255498f180043a4b0845b12ffc8f139ca345a9c2ba3e9105a24ef79737

SHA512
ffbf76509939915cf4fe7d6a7db5917546ec9703b801c68a1beddb79e9dca3331424ecc7083f9a7f10cbbbc526e124133c1394b4dac3fa9c1a9241fc53b888a7

Download Submit
\??\c:\gwcrs\kmbcy.dll

Filesize
46KB

MD5
40257501b15ab70b2086d612926f598c

SHA1
535f7ceef59df4ec200fd543b81b5a0f5fb15cf2

SHA256
9619188ea685e15d82504d0e566187809080e5ca535dc3ad2ed0fdc986c94083

SHA512
ad6ec46bd6e4556bd8fd5afe409e4086ead6d65c724669ffd5a98ab3e9dbc185d41e66d00f935aa82d2b3e03bfe9b75cd09e2ce1de70c6343d3d62ba7d443a9b

Download Submit
memory/468-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/468-2-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/3220-10-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3220-11-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3220-13-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3220-14-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3220-15-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3876-7-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download