61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7

Analysis

max time kernel
175s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-03-2024 22:41

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General

Target

61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe
Size

98KB
MD5

8ad3191c3270d52a98dc8a2239738697
SHA1

20062d75a573d3cc9a0889f87114a353a2a9048c
SHA256

61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7
SHA512

3b9e6578c6516b0be383deb7f4086f18aff44c01e160190bce5431398657039ff1479020d919d4e2807da778ff295da38fc8ab56ea60b1dadfee9e8c46aa7c37
SSDEEP

1536:4Cd+qitb0bt+FTCQ2j9EvHsdX+u1X20n2eN6wrBXBuOkD8Ovb8:H4b0hR9EE1+u1X2q2e3r/

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000400000-0x0000000000415000-memory.dmp	UPX
behavioral1/files/0x000b000000015f0e-5.dat	UPX
behavioral1/memory/3000-9-0x0000000000400000-0x0000000000415000-memory.dmp	UPX
behavioral1/memory/2948-11-0x0000000000400000-0x0000000000415000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2948	conwurm.exe

Loads dropped DLL 1 IoCs

pid	Process
3000	61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral1/files/0x000b000000015f0e-5.dat	upx
behavioral1/memory/3000-9-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral1/memory/2948-11-0x0000000000400000-0x0000000000415000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2948	3000	61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe	29
PID 3000 wrote to memory of 2948	3000	61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe	29
PID 3000 wrote to memory of 2948	3000	61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe	29
PID 3000 wrote to memory of 2948	3000	61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe	29

C:\Users\Admin\AppData\Local\Temp\61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe
"C:\Users\Admin\AppData\Local\Temp\61f9728b33b9d17653db8ee0b59ff8edff321ad99208f5173054191ce836e1c7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\conwurm.exe
  "C:\Users\Admin\AppData\Local\Temp\conwurm.exe"
  2⤵
  - Executes dropped EXE
  PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\conwurm.exe

Filesize
98KB

MD5
2f8302646dc388bee52dd4b372163eb2

SHA1
383718d89b41389287ed70430255d1b94dac45be

SHA256
fe08b1d2af93c61fcfea9486cd99117567a59753a5f1fd87e5863601cf108cea

SHA512
02503dc5ce1fde0e37b929af635e1084b5603a9d8690e8305d625945e9e6a7e3a336a605223c90a1576c1deacb0b4eb60cffe9166926f9bd49a2b643a13b5dff

Download Submit
memory/2948-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2948-14-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3000-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-1-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3000-2-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3000-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download