399a66a264facc46f2a703c9de786fcff6707f1fa4ca383b9a35b3fdd073cb7e

Analysis

max time kernel
91s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2024, 12:13

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General

Target

_hashlib.dll
Size

104KB
MD5

541f4e38eace06613f604ee6a5372bec
SHA1

b3c61f95bb145171f957608b7e9cdef2d27ee1e4
SHA256

b212a6b61aea6678c90cc2a698b7e49c95111a7a78a93897793988bce25ceddb
SHA512

d08da0c0777652adfa21acbae5634d7ccc5cc2deb6e31a1d81b4aa495d20d713fb5a6ed5f9a4bc25b8d6eded22b950abea27f95e1492d5f356878b5811b8a7a8
SSDEEP

3072:gD6BiIXJ6AON/UVOnhYeYIC3gV8v2yJIGmbK4out:56w4nh/YIrCv26I7bK4oS

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral16/memory/3300-0-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral16/memory/3300-1-0x0000000074D90000-0x0000000074E41000-memory.dmp	upx
behavioral16/memory/3300-2-0x000000001E000000-0x000000001E24E000-memory.dmp	upx
behavioral16/memory/3300-3-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral16/memory/3300-5-0x000000001E000000-0x000000001E24E000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 3300	3572	rundll32.exe	85
PID 3572 wrote to memory of 3300	3572	rundll32.exe	85
PID 3572 wrote to memory of 3300	3572	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\_hashlib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\_hashlib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3300-0-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/3300-1-0x0000000074D90000-0x0000000074E41000-memory.dmp

Filesize
708KB

Download
memory/3300-2-0x000000001E000000-0x000000001E24E000-memory.dmp

Filesize
2.3MB

Download
memory/3300-3-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/3300-4-0x0000000074D90000-0x0000000074E41000-memory.dmp

Filesize
708KB

Download
memory/3300-5-0x000000001E000000-0x000000001E24E000-memory.dmp

Filesize
2.3MB

Download