6163072906e48aa52a85bfed50e0f6ed757a3a58ef3a9d9a50543453cc57cdc4

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07-01-2024 01:47

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General

Target

47b5bab5ad9e47772df1096b7f2253de.exe
Size

14KB
MD5

47b5bab5ad9e47772df1096b7f2253de
SHA1

737a17c2303024656891712df56a32e917f4b739
SHA256

6163072906e48aa52a85bfed50e0f6ed757a3a58ef3a9d9a50543453cc57cdc4
SHA512

92c901b13ac0978c800170a703902d2238879243dd6f9699e5fbc491644f1c03ad5042009740e7d34bd6599b0c1eefbee8c6b629b7b67b18c2f22eddb173c803
SSDEEP

384:ImHBse9eTnP7xChPQy3vq5C8qYK+7XwCRNOvtTrP:ImHuseTnP7chrZ8KZcotTr

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
2772	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	xuntxnk.exe

Loads dropped DLL 2 IoCs

pid	Process
2108	47b5bab5ad9e47772df1096b7f2253de.exe
2108	47b5bab5ad9e47772df1096b7f2253de.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2108-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/files/0x000d000000012325-3.dat	upx
behavioral1/memory/1828-11-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2108-19-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xuntxn.dll	47b5bab5ad9e47772df1096b7f2253de.exe
File created	C:\Windows\SysWOW64\xuntxnk.exe	47b5bab5ad9e47772df1096b7f2253de.exe
File opened for modification	C:\Windows\SysWOW64\xuntxnk.exe	47b5bab5ad9e47772df1096b7f2253de.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2108	47b5bab5ad9e47772df1096b7f2253de.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 1828	2108	47b5bab5ad9e47772df1096b7f2253de.exe	28
PID 2108 wrote to memory of 1828	2108	47b5bab5ad9e47772df1096b7f2253de.exe	28
PID 2108 wrote to memory of 1828	2108	47b5bab5ad9e47772df1096b7f2253de.exe	28
PID 2108 wrote to memory of 1828	2108	47b5bab5ad9e47772df1096b7f2253de.exe	28
PID 2108 wrote to memory of 2772	2108	47b5bab5ad9e47772df1096b7f2253de.exe	29
PID 2108 wrote to memory of 2772	2108	47b5bab5ad9e47772df1096b7f2253de.exe	29
PID 2108 wrote to memory of 2772	2108	47b5bab5ad9e47772df1096b7f2253de.exe	29
PID 2108 wrote to memory of 2772	2108	47b5bab5ad9e47772df1096b7f2253de.exe	29

C:\Users\Admin\AppData\Local\Temp\47b5bab5ad9e47772df1096b7f2253de.exe
"C:\Users\Admin\AppData\Local\Temp\47b5bab5ad9e47772df1096b7f2253de.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\xuntxnk.exe
  C:\Windows\system32\xuntxnk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1828
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\47b5bab5ad9e47772df1096b7f2253de.exe.bat
  2⤵
  - Deletes itself
  PID:2772

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\47b5bab5ad9e47772df1096b7f2253de.exe.bat

Filesize
173B

MD5
a698010cea691e70e2bec3d63197cffb

SHA1
1a5b6d05d7d738360685fffbe4a80989bdf6e71a

SHA256
57dd44b2437cff5200d482995aed13e007bdd0661a3cbe992bf69bbcddfa0e9f

SHA512
a45668531a2fe73103eb8e352740ad787faf8b2a9a0666188f0a980e8c155dcf523d41eaaf7417029f7c67d646c19ea4689a50136be8bc420d4221861d68eeed

Download Submit
\Windows\SysWOW64\xuntxnk.exe

Filesize
14KB

MD5
47b5bab5ad9e47772df1096b7f2253de

SHA1
737a17c2303024656891712df56a32e917f4b739

SHA256
6163072906e48aa52a85bfed50e0f6ed757a3a58ef3a9d9a50543453cc57cdc4

SHA512
92c901b13ac0978c800170a703902d2238879243dd6f9699e5fbc491644f1c03ad5042009740e7d34bd6599b0c1eefbee8c6b629b7b67b18c2f22eddb173c803

Download Submit
memory/1828-11-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2108-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2108-10-0x0000000000220000-0x0000000000231000-memory.dmp

Filesize
68KB

Download
memory/2108-19-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download