6ecaede7ee8781e8fe5c62a586969955c2802cefda6f54af28be12e4240a9c27

Analysis

max time kernel
11s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06/01/2024, 05:35

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General

Target

456a873c7387d3d8ebd60de7faed7e2a.exe
Size

14KB
MD5

456a873c7387d3d8ebd60de7faed7e2a
SHA1

773e3605a40fa86562ed5b84d971ed23b7137738
SHA256

6ecaede7ee8781e8fe5c62a586969955c2802cefda6f54af28be12e4240a9c27
SHA512

52f7fe7e9dfc8c0ee4cc36443607992cef3df315d004bee76dc8d31f7eb70684f9fa957372e959429cf8012c360ffc4d3dde0b884019d2d8ae84759c66a47735
SSDEEP

384:ZioTXpbN07892mPmM8bBx86sH6z2R9l1v+g6HwU:Z5Zuu2d5tSBH6z61r6

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
1916	lenschk.exe

Loads dropped DLL 2 IoCs

pid	Process
2980	456a873c7387d3d8ebd60de7faed7e2a.exe
2980	456a873c7387d3d8ebd60de7faed7e2a.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2980-1-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/1916-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2980-4-0x0000000000230000-0x000000000023F000-memory.dmp	upx
behavioral1/files/0x000b000000014682-3.dat	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\lensch.dll	456a873c7387d3d8ebd60de7faed7e2a.exe
File created	C:\Windows\SysWOW64\lenschk.exe	456a873c7387d3d8ebd60de7faed7e2a.exe
File opened for modification	C:\Windows\SysWOW64\lenschk.exe	456a873c7387d3d8ebd60de7faed7e2a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 1916	2980	456a873c7387d3d8ebd60de7faed7e2a.exe	15
PID 2980 wrote to memory of 1916	2980	456a873c7387d3d8ebd60de7faed7e2a.exe	15
PID 2980 wrote to memory of 1916	2980	456a873c7387d3d8ebd60de7faed7e2a.exe	15
PID 2980 wrote to memory of 1916	2980	456a873c7387d3d8ebd60de7faed7e2a.exe	15

C:\Users\Admin\AppData\Local\Temp\456a873c7387d3d8ebd60de7faed7e2a.exe
"C:\Users\Admin\AppData\Local\Temp\456a873c7387d3d8ebd60de7faed7e2a.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\SysWOW64\lenschk.exe
  C:\Windows\system32\lenschk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1916
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\456a873c7387d3d8ebd60de7faed7e2a.exe.bat
  2⤵
  PID:2464

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1916-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2980-1-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2980-11-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2980-4-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2980-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2980-17-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download