cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c

Analysis

max time kernel
186s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 17:08

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General

Target

cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe
Size

81KB
MD5

f71d639b3c2ca39ba59dad4d5bac2de8
SHA1

c73123b1e09059a5a9332684917cf33a7eea9b9e
SHA256

cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c
SHA512

d552b5a41900316db4f76376f0a9bc03b864fe6c867ddb1aaf903a7f18b922f6a95bb116e81d2a90ae39129f190c79598c289522c0e851629b212d3f0c2c976b
SSDEEP

1536:apbwiYUEsH1CT4JE89exS0Xin0o2AteJbIzTsFdf:QbwD+1AU9e0kW0oPWbIzTsFdf

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4884-132-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/4884-134-0x0000000000400000-0x0000000000419000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 3580	4884	cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe	81
PID 4884 wrote to memory of 3580	4884	cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe	81
PID 4884 wrote to memory of 3580	4884	cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe	81

C:\Users\Admin\AppData\Local\Temp\cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe
"C:\Users\Admin\AppData\Local\Temp\cb50534f3fc13ac8795aec1b5e30541a04cee2cd2d3c2a1e28f1b7745981de5c.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /q /c "C:\Users\Admin\AppData\Local\Temp\a..bat" > nul 2> nul
  2⤵
  PID:3580

Network

MITRE ATT&CK Enterprise v6

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\a..bat

Filesize
274B

MD5
883ec5d22b6bba66481c652ab64f25e2

SHA1
2d499a3f0f20edc932df20160c306a39587106ed

SHA256
2320ee75c80f071df5475942941da909ba6798252c17bdab58022fd5ee1bb88c

SHA512
9884f885e35d3a2ad7b6804b3a618d235aa64a35b206191a533af4f51bf04fadeeafe6185cdbe2074c20e519b95fc071bd8be1c7494ac3508e91b35e9418af39

Download Submit
memory/4884-132-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/4884-134-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download