751cb4806c4556a7130de89a9ad8d81e6c6d7a30c7c7e27c96203f739786263f

Analysis

max time kernel
150s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09-04-2024 22:10

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General

Target

38288ab5c1405276f7bf25d3a516062e.exe
Size

58KB
MD5

38288ab5c1405276f7bf25d3a516062e
SHA1

0bcfad9b24f54e7a19e98a7041d92c5d68707d14
SHA256

751cb4806c4556a7130de89a9ad8d81e6c6d7a30c7c7e27c96203f739786263f
SHA512

383637b13898981d0a628a4b8ec808c8a35e913a4c2795721342c5b42b45aca61b279d0dd47ebb91a488b6c91ab8d5ae8c887dacc78543a810eda9d64f149ea5
SSDEEP

1536:AEPpS76ydzGej0d4K20n2eN6RXBuOkDjprs/yy:AqS/dzJIr2q2eS

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	38288ab5c1405276f7bf25d3a516062e.exe

Executes dropped EXE 1 IoCs

pid	Process
1840	conwurm.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3588-0-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/files/0x000d00000002315a-7.dat	upx
behavioral2/memory/1840-11-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3588-14-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1840-15-0x0000000000400000-0x0000000000414000-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 3 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 1840	3588	38288ab5c1405276f7bf25d3a516062e.exe	84
PID 3588 wrote to memory of 1840	3588	38288ab5c1405276f7bf25d3a516062e.exe	84
PID 3588 wrote to memory of 1840	3588	38288ab5c1405276f7bf25d3a516062e.exe	84

C:\Users\Admin\AppData\Local\Temp\38288ab5c1405276f7bf25d3a516062e.exe
"C:\Users\Admin\AppData\Local\Temp\38288ab5c1405276f7bf25d3a516062e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Users\Admin\AppData\Local\Temp\conwurm.exe
  "C:\Users\Admin\AppData\Local\Temp\conwurm.exe"
  2⤵
  - Executes dropped EXE
  PID:1840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
58KB

MD5
2f4205205e96660ae1c1eea4a019f972

SHA1
4ed014dbb66ef5c574b2bf921c357efef3cf4798

SHA256
fbad65790e0bea578deaf61cf1c84529144a4aeecf9beaab86786f8fad860c9f

SHA512
b4426dd6d4b2b4ff76156dd7db387b55203d546af290f47b7ba7049e41e247a742fde93e3639faa3de43af758c5e884b0cce24423a1f8d5ddf0e4f51e5d966a8

Download Submit
memory/1840-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-17-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3588-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3588-1-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3588-2-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3588-14-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download