93b3b878974283e468af8f857d7730587bcb6a5a366a705bea77a3781e315956

Analysis

max time kernel
150s
max time network
117s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 11:21

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General

Target

677ee056ff39ca2c093446c35e198113.exe
Size

11KB
MD5

677ee056ff39ca2c093446c35e198113
SHA1

89059ebcac5d3b18a0cd001742294c628057b393
SHA256

93b3b878974283e468af8f857d7730587bcb6a5a366a705bea77a3781e315956
SHA512

b0d627c1e68cbad96dd1098c761115750fc7714d6972f72db5b167470e3b5e0835641dadf12ecf5a0e1b254d9a65180d4794593ea08b76080610bd499083e8b5
SSDEEP

192:OLoXm0xffvqKPRhtJIIfh+TLNsqDWo/Ib1lnwPzGE4ZwhcOAbmg:OUXm45POmh+vygWoEObYkb/g

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
3028	jolinosk.exe

Loads dropped DLL 2 IoCs

pid	Process
880	677ee056ff39ca2c093446c35e198113.exe
880	677ee056ff39ca2c093446c35e198113.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/880-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0009000000015ca3-3.dat	upx
behavioral1/memory/3028-11-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/880-12-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\jolinos.dll	677ee056ff39ca2c093446c35e198113.exe
File created	C:\Windows\SysWOW64\jolinosk.exe	677ee056ff39ca2c093446c35e198113.exe
File opened for modification	C:\Windows\SysWOW64\jolinosk.exe	677ee056ff39ca2c093446c35e198113.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 3028	880	677ee056ff39ca2c093446c35e198113.exe	28
PID 880 wrote to memory of 3028	880	677ee056ff39ca2c093446c35e198113.exe	28
PID 880 wrote to memory of 3028	880	677ee056ff39ca2c093446c35e198113.exe	28
PID 880 wrote to memory of 3028	880	677ee056ff39ca2c093446c35e198113.exe	28
PID 880 wrote to memory of 2880	880	677ee056ff39ca2c093446c35e198113.exe	29
PID 880 wrote to memory of 2880	880	677ee056ff39ca2c093446c35e198113.exe	29
PID 880 wrote to memory of 2880	880	677ee056ff39ca2c093446c35e198113.exe	29
PID 880 wrote to memory of 2880	880	677ee056ff39ca2c093446c35e198113.exe	29

C:\Users\Admin\AppData\Local\Temp\677ee056ff39ca2c093446c35e198113.exe
"C:\Users\Admin\AppData\Local\Temp\677ee056ff39ca2c093446c35e198113.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:880
- C:\Windows\SysWOW64\jolinosk.exe
  C:\Windows\system32\jolinosk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:3028
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\677ee056ff39ca2c093446c35e198113.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\677ee056ff39ca2c093446c35e198113.exe.bat

Filesize
182B

MD5
3070db7e580bda550eb0e4d32a357eb8

SHA1
a3090d366843825f59d4865cbe6cc080c8a27e21

SHA256
fbb09a627b8a7b8e76f6afd8beb7d324be75f1120b2931ab36bf287819b7cd2e

SHA512
edad8154ed53ae7697aea6b7d122bc508d5fc9efdb2a4b049fc89e23be71fb84c833d558854d92b9e20090d90f4d4d394073091c84b51254a8d30fbd53a1b876

Download Submit
\Windows\SysWOW64\jolinosk.exe

Filesize
11KB

MD5
677ee056ff39ca2c093446c35e198113

SHA1
89059ebcac5d3b18a0cd001742294c628057b393

SHA256
93b3b878974283e468af8f857d7730587bcb6a5a366a705bea77a3781e315956

SHA512
b0d627c1e68cbad96dd1098c761115750fc7714d6972f72db5b167470e3b5e0835641dadf12ecf5a0e1b254d9a65180d4794593ea08b76080610bd499083e8b5

Download Submit
memory/880-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/880-10-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/880-12-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/880-16-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/3028-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download