cf2bccb31721b9ef9efe982b0ecc5ca5cdecded9dffb5ba0d87a45356da110a5

Analysis

max time kernel
152s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 09:56

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General

Target

6752f4178a9554f8aed55982a9776838.exe
Size

10KB
MD5

6752f4178a9554f8aed55982a9776838
SHA1

11be215cbe3c3c037b38704875dc0160ed71ff5f
SHA256

cf2bccb31721b9ef9efe982b0ecc5ca5cdecded9dffb5ba0d87a45356da110a5
SHA512

42c147edb9cb4ee910c6a112f8084a9de4b4418d410c05adf768432f2422bfa51816950b0c389e5559709a3481b0a40fbb64bfd879304268cb4bbb84f5fc7030
SSDEEP

192:CDuFSHP37IQsDocCg3wPjdadrLVc7PG1KnoeSjKSBH1JXZl819/V3Z:4KSvrIQsD1APjdadrBEoHR1zl8b

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

Deletes itself 1 IoCs

pid	Process
2820	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3052	mduaeyk.exe

Loads dropped DLL 2 IoCs

pid	Process
2168	6752f4178a9554f8aed55982a9776838.exe
2168	6752f4178a9554f8aed55982a9776838.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2168-19-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/3052-11-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x000d000000012337-10.dat	upx
behavioral1/memory/2168-4-0x0000000000030000-0x000000000003E000-memory.dmp	upx
behavioral1/memory/2168-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/3052-21-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mduaey.dll	6752f4178a9554f8aed55982a9776838.exe
File created	C:\Windows\SysWOW64\mduaeyk.exe	6752f4178a9554f8aed55982a9776838.exe
File opened for modification	C:\Windows\SysWOW64\mduaeyk.exe	6752f4178a9554f8aed55982a9776838.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 3052	2168	6752f4178a9554f8aed55982a9776838.exe	3
PID 2168 wrote to memory of 3052	2168	6752f4178a9554f8aed55982a9776838.exe	3
PID 2168 wrote to memory of 3052	2168	6752f4178a9554f8aed55982a9776838.exe	3
PID 2168 wrote to memory of 3052	2168	6752f4178a9554f8aed55982a9776838.exe	3
PID 2168 wrote to memory of 2820	2168	6752f4178a9554f8aed55982a9776838.exe	2
PID 2168 wrote to memory of 2820	2168	6752f4178a9554f8aed55982a9776838.exe	2
PID 2168 wrote to memory of 2820	2168	6752f4178a9554f8aed55982a9776838.exe	2
PID 2168 wrote to memory of 2820	2168	6752f4178a9554f8aed55982a9776838.exe	2

C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\6752f4178a9554f8aed55982a9776838.exe.bat
1⤵
- Deletes itself
PID:2820

C:\Windows\SysWOW64\mduaeyk.exe
C:\Windows\system32\mduaeyk.exe ˜‰
1⤵
- Executes dropped EXE
PID:3052

C:\Users\Admin\AppData\Local\Temp\6752f4178a9554f8aed55982a9776838.exe
"C:\Users\Admin\AppData\Local\Temp\6752f4178a9554f8aed55982a9776838.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2168

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

C:\Users\Admin\AppData\Local\Temp\6752f4178a9554f8aed55982a9776838.exe.bat

Filesize
182B

MD5
c9c3b13441df428ba3444b661e36ab7f

SHA1
c62e5063da3b7121051909f2dacc7b10d5c220ea

SHA256
8814be29a650b4d906519834f5412907fb8b70d21be63c7f2eac21ab51007b15

SHA512
a1cf35148e5c26d6d322409441bf8ec2a13b159f42a804999ffd5ce512ecc1da5123504320689a4dc9a5e04bf601a9d25b8191663aaabba8ec5637c4fe1995da

Download Submit
C:\Windows\SysWOW64\mduaeyk.exe

Filesize
10KB

MD5
6752f4178a9554f8aed55982a9776838

SHA1
11be215cbe3c3c037b38704875dc0160ed71ff5f

SHA256
cf2bccb31721b9ef9efe982b0ecc5ca5cdecded9dffb5ba0d87a45356da110a5

SHA512
42c147edb9cb4ee910c6a112f8084a9de4b4418d410c05adf768432f2422bfa51816950b0c389e5559709a3481b0a40fbb64bfd879304268cb4bbb84f5fc7030

Download Submit
memory/2168-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2168-4-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/2168-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3052-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3052-21-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download