5acc6b81f60d552e955f4cb4e1fb825340bf75ac0923730eaff532aecd7689d8

Analysis

max time kernel
151s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 07:43

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General

Target

1273e6b2f68c1be047a6e1e3c2471e41.exe
Size

10KB
MD5

1273e6b2f68c1be047a6e1e3c2471e41
SHA1

8c2c47b73cf18571a8c961e3d5e2b81ed487e37b
SHA256

5acc6b81f60d552e955f4cb4e1fb825340bf75ac0923730eaff532aecd7689d8
SHA512

022cd6198becbae4c0b5bab85cba5bd8ce26909dfa8014e1a97b9b92a8791133fc15dc77b3ede142abb5316929fc1d6c71437238b47fc931022946cb199f815e
SSDEEP

192:Ryvj2H5QwZPhoMVBAbWPFO3+3y2El/mGBx27D7IgOGB/DO4E7T3Z:IyH5Qi5zAbWtGIOuOa/q4ut

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
2880	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2008	xpsbosk.exe

Loads dropped DLL 2 IoCs

pid	Process
1080	1273e6b2f68c1be047a6e1e3c2471e41.exe
1080	1273e6b2f68c1be047a6e1e3c2471e41.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1080-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0008000000012281-3.dat	upx
behavioral1/memory/2008-11-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0008000000012281-5.dat	upx
behavioral1/memory/1080-19-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xpsbos.dll	1273e6b2f68c1be047a6e1e3c2471e41.exe
File created	C:\Windows\SysWOW64\xpsbosk.exe	1273e6b2f68c1be047a6e1e3c2471e41.exe
File opened for modification	C:\Windows\SysWOW64\xpsbosk.exe	1273e6b2f68c1be047a6e1e3c2471e41.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1080	1273e6b2f68c1be047a6e1e3c2471e41.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 2008	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	28
PID 1080 wrote to memory of 2008	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	28
PID 1080 wrote to memory of 2008	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	28
PID 1080 wrote to memory of 2008	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	28
PID 1080 wrote to memory of 2880	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	30
PID 1080 wrote to memory of 2880	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	30
PID 1080 wrote to memory of 2880	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	30
PID 1080 wrote to memory of 2880	1080	1273e6b2f68c1be047a6e1e3c2471e41.exe	30

C:\Users\Admin\AppData\Local\Temp\1273e6b2f68c1be047a6e1e3c2471e41.exe
"C:\Users\Admin\AppData\Local\Temp\1273e6b2f68c1be047a6e1e3c2471e41.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\xpsbosk.exe
  C:\Windows\system32\xpsbosk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2008
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\1273e6b2f68c1be047a6e1e3c2471e41.exe.bat
  2⤵
  - Deletes itself
  PID:2880

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\1273e6b2f68c1be047a6e1e3c2471e41.exe.bat

Filesize
182B

MD5
5ba87c710a504477b8c0fc86ea0faaa4

SHA1
b3c76b0fe2555297598b16deb63e2ccaa5b573c2

SHA256
616624680fdcf9c44d3c7dc6ca31ee21fbfc9780e734a3b89672108705b717e9

SHA512
0b4a9e4e8df3e4e12498e772505f37f6857b3ed6c4d928d1846f1cdba17f973de0821b54f75e5ece741b4b694b59a3897c7cd00284aeb69346449ada9b69ac03

Download Submit
\Windows\SysWOW64\xpsbosk.exe

Filesize
10KB

MD5
1273e6b2f68c1be047a6e1e3c2471e41

SHA1
8c2c47b73cf18571a8c961e3d5e2b81ed487e37b

SHA256
5acc6b81f60d552e955f4cb4e1fb825340bf75ac0923730eaff532aecd7689d8

SHA512
022cd6198becbae4c0b5bab85cba5bd8ce26909dfa8014e1a97b9b92a8791133fc15dc77b3ede142abb5316929fc1d6c71437238b47fc931022946cb199f815e

Download Submit
memory/1080-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1080-9-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/1080-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2008-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download