2c91d8968755f474876a4e7f093447fb1de9608b2a95e69b0ed46fc885561b65

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 19:32

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General

Target

c42f3bc7ca2b4c438c915a79901f88e2.exe
Size

284KB
MD5

c42f3bc7ca2b4c438c915a79901f88e2
SHA1

7e3b89096fe86d2eadd08faea78a3432093651cf
SHA256

2c91d8968755f474876a4e7f093447fb1de9608b2a95e69b0ed46fc885561b65
SHA512

595278cd721b5c206b0641d44f6baeb6233850665e497fddb4afd18166f211fae3e055bda1fb260e0271e0ebca4891fc451b0ff059be791824c30af7ba46bd70
SSDEEP

6144:wHbeYb8eXeJgwWG3h/GgtnmJxzUH2zvP6srbUxhaV3P2N6rk:wHa68eXeJgwWG3dGgtmJxzs2rP6q6oV6

Score

8^/10

evasion persistence spyware stealer

Malware Config

Signatures

Disables taskbar notifications via registry modification
evasion

Modifies Installed Components in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Deletes itself 1 IoCs

pid	Process
2320	pcj.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	pcj.exe

Loads dropped DLL 2 IoCs

pid	Process
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe

Modifies system executable filetype association 2 TTPs 17 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open\command	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start\command\ = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\ = "Application"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\DefaultIcon\ = "%1"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\pcj.exe\" -a \"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas\command\ = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\Content Type = "application/x-msdownload"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\DefaultIcon	pcj.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

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\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\ctfmon.exe = "C:\\WINDOWS\\system32\\ctfmon.exe"	pcj.exe

Modifies registry class 41 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\pcj.exe\" -a \"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\ = "exefile"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\open	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\pcj.exe\" -a \"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\start	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\start\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\DefaultIcon	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\runas	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start\command\ = "\"%1\" %*"	pcj.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\open\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\ = "Application"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\DefaultIcon\ = "%1"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\start\command\ = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas\command\ = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\DefaultIcon\ = "%1"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\Content Type = "application/x-msdownload"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\DefaultIcon	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\runas\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open\command\IsolatedCommand = "\"%1\" %*"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\runas\command	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.exe\shell\start\command	pcj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\Content Type = "application/x-msdownload"	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\open	pcj.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\exefile\shell\start	pcj.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2276	c42f3bc7ca2b4c438c915a79901f88e2.exe
2320	pcj.exe
2320	pcj.exe
2320	pcj.exe
2320	pcj.exe
2320	pcj.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2568	explorer.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe
Token: SeShutdownPrivilege	2568	explorer.exe

Suspicious use of FindShellTrayWindow 33 IoCs

pid	Process
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2320	pcj.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2320	pcj.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe

Suspicious use of SendNotifyMessage 19 IoCs

pid	Process
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2568	explorer.exe
2320	pcj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2320	2276	c42f3bc7ca2b4c438c915a79901f88e2.exe	28
PID 2276 wrote to memory of 2320	2276	c42f3bc7ca2b4c438c915a79901f88e2.exe	28
PID 2276 wrote to memory of 2320	2276	c42f3bc7ca2b4c438c915a79901f88e2.exe	28
PID 2276 wrote to memory of 2320	2276	c42f3bc7ca2b4c438c915a79901f88e2.exe	28

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\c42f3bc7ca2b4c438c915a79901f88e2.exe
"C:\Users\Admin\AppData\Local\Temp\c42f3bc7ca2b4c438c915a79901f88e2.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\pcj.exe
  "C:\Users\Admin\AppData\Local\pcj.exe" -gav C:\Users\Admin\AppData\Local\Temp\c42f3bc7ca2b4c438c915a79901f88e2.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2320

C:\Windows\explorer.exe
explorer.exe
1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2568

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

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\pcj.exe

Filesize
284KB

MD5
5b45ee8d5055b3788dc37d734e2ff057

SHA1
7b6112e818e844263b2a9310b25fca1f2ddc87cf

SHA256
bdb099d7427e87bbff8886304e3ec24ff036f64d9c94561b9f64c52b3f8100bc

SHA512
35c5921409fc558f41d6f7bea415f1279c6380fdcd2a305fafa5e31b8e914b78ef1e776c22d776e1d426f2c50c5f0c521eaf87dfcb4c5de8e75ff0c64e6f8a21

Download Submit
memory/2276-0-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2276-2-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2276-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2276-4-0x0000000002150000-0x0000000002407000-memory.dmp

Filesize
2.7MB

Download
memory/2276-13-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-23-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2320-26-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-17-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2320-18-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2320-40-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-20-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-21-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2320-22-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-15-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2320-24-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-38-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-16-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-27-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-28-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-32-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-33-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-34-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-35-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-36-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2320-37-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/2568-25-0x0000000004120000-0x0000000004121000-memory.dmp

Filesize
4KB

Download
memory/2568-39-0x0000000003E00000-0x0000000003E10000-memory.dmp

Filesize
64KB

Download
memory/2568-19-0x0000000004120000-0x0000000004121000-memory.dmp

Filesize
4KB

Download