e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74

Analysis

max time kernel
150s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
02-05-2024 04:43

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General

Target

e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe
Size

43KB
MD5

d1563e1344251b7a1bc739aefd696214
SHA1

c5d2a13d06ee43b1637a1aca1891397efdd95eb8
SHA256

e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74
SHA512

8ace47d0336005f7159598e9bf782264a7f264f7e78f121e4b7cd6ae03c2ecc7a6ad30ccae3c74eb545d8b7bf706f1fc99baba24571fecf58b4c4ef9f9225069
SSDEEP

768:Iv9ilrnywLsYg+0yq2vWdT9SOaNou0yWH7oXzO8ZGjSjAsOmA0acwAW:fjxsz40yvXHGjUAsOPZt

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral2/memory/1820-0-0x0000000000400000-0x0000000000417000-memory.dmp	UPX
behavioral2/files/0x000d000000023b9c-7.dat	UPX
behavioral2/memory/1820-12-0x0000000000400000-0x0000000000417000-memory.dmp	UPX
behavioral2/memory/3444-13-0x0000000000400000-0x0000000000417000-memory.dmp	UPX
behavioral2/memory/3444-17-0x0000000000400000-0x0000000000417000-memory.dmp	UPX

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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe

Executes dropped EXE 1 IoCs

pid	Process
3444	conwurm.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1820-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral2/files/0x000d000000023b9c-7.dat	upx
behavioral2/memory/1820-12-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral2/memory/3444-13-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral2/memory/3444-17-0x0000000000400000-0x0000000000417000-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 1820 wrote to memory of 3444	1820	e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe	84
PID 1820 wrote to memory of 3444	1820	e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe	84
PID 1820 wrote to memory of 3444	1820	e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe	84

C:\Users\Admin\AppData\Local\Temp\e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe
"C:\Users\Admin\AppData\Local\Temp\e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Local\Temp\conwurm.exe
  "C:\Users\Admin\AppData\Local\Temp\conwurm.exe"
  2⤵
  - Executes dropped EXE
  PID:3444

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
43KB

MD5
c40aedbe0141b05ab5b68ebd42ddeee2

SHA1
77aaebc11999601b86596101e9070acf604f3329

SHA256
e69cdc2765aec6092bc7eb58850428e641e5fba9b7b74c7412e7614fc9823abf

SHA512
00c1e4bf2527c6c9a8d62897e09aefd74aaae635ad857d00b00681765265f22bd82f366976e06aa2f0dbc3cdedab0337b90e660d97aa361b5e12536fa4a59ea0

Download Submit
memory/1820-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1820-2-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/1820-1-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/1820-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3444-13-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3444-16-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/3444-17-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3444-19-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download