31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1

Analysis

max time kernel
157s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 20:23

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General

Target

31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe
Size

23KB
MD5

22da8a202ad9749ac2c802fbd3cf486c
SHA1

4cd89e7ea364c0d17ae9a7627b53167f807e4d0b
SHA256

31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1
SHA512

4360d0e7df1d9294afc89de36df043807a06bc96a9fbbf1e8dc03c4de44c8e67655bd6d2003b881c3c879452850735afbb9abad251926d5f0339440949fde5a4
SSDEEP

384:6gvlQoGKdivmICib0666666666RJ70uIabjbt3TUAKoYQW9EsHyLcO:x2oGKdJ5i0uIaOUYP27

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral2/memory/3288-0-0x0000000000500000-0x000000000050D000-memory.dmp	UPX
behavioral2/memory/3288-1-0x0000000000500000-0x000000000050D000-memory.dmp	UPX
behavioral2/files/0x000800000002332d-6.dat	UPX
behavioral2/memory/4584-11-0x0000000000500000-0x000000000050D000-memory.dmp	UPX
behavioral2/memory/4584-12-0x0000000000500000-0x000000000050D000-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-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation	31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe

Executes dropped EXE 1 IoCs

pid	Process
4584	codecupdate.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3288-0-0x0000000000500000-0x000000000050D000-memory.dmp	upx
behavioral2/memory/3288-1-0x0000000000500000-0x000000000050D000-memory.dmp	upx
behavioral2/files/0x000800000002332d-6.dat	upx
behavioral2/memory/4584-11-0x0000000000500000-0x000000000050D000-memory.dmp	upx
behavioral2/memory/4584-12-0x0000000000500000-0x000000000050D000-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 3288 wrote to memory of 4584	3288	31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe	95
PID 3288 wrote to memory of 4584	3288	31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe	95
PID 3288 wrote to memory of 4584	3288	31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe	95

C:\Users\Admin\AppData\Local\Temp\31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe
"C:\Users\Admin\AppData\Local\Temp\31245909abe7e3eb85f7f068f60c0ac358ce0425f2869f54002360876a8432f1.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\codecupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"
  2⤵
  - Executes dropped EXE
  PID:4584

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\codecupdate.exe

Filesize
23KB

MD5
26cc1ecda50b23ddeed1762c527806e6

SHA1
86ec11fa8007866bfe08f340bb9dbb9c3987b6b9

SHA256
74e14f31acd702f923c16cc170219b34ec96625f8a873f225073202ca210ba94

SHA512
e55a38b61166220ef25f1d667426c6fba9d6030f821b5cccab279657121e18c9faff12dcfa6ec74e31795568e5bd93f19fdf78dba8c4ee0acdd83dc140e2a238

Download Submit
memory/3288-0-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/3288-1-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/4584-11-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/4584-12-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download