a7d1e0426d5ec9205c571cbafa558475f0a8fb701500a1353fd8fd5ad5a91c89

General

Target

VirusShare_849c748f9a37d4125779f6b31435d220.dll
Size

156KB
MD5

849c748f9a37d4125779f6b31435d220
SHA1

ab26f79f3726b2a066f73f2711d8362486ff93ce
SHA256

a7d1e0426d5ec9205c571cbafa558475f0a8fb701500a1353fd8fd5ad5a91c89
SHA512

131d7c664211b581d061005ad6686e4dd2191727ced66b371dbc34895f2f426bc57d93c97da2ed39bd47b00154c96827d7d4868001a62e7f1027d0aea621468c
SSDEEP

3072:NLkD7BY9kS2O0to3IzwtVgHtWt8PgIJY7Ctp:NLS7BCk1tWIiV0Wq3JY7C

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 11 IoCs

resource	yara_rule
behavioral2/memory/2400-0-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/2400-3-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/2400-4-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-10-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-11-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/2400-17-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-23-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-34-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-51-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-86-0x000000000B000000-0x000000000B031000-memory.dmp	UPX
behavioral2/memory/4744-230-0x000000000B000000-0x000000000B031000-memory.dmp	UPX

Blocklisted process makes network request 3 IoCs

flow	pid	Process
14	4744	rundll32.exe
43	4744	rundll32.exe
61	4744	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4744	rundll32.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2400-0-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/2400-3-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/2400-4-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-10-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-11-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/2400-17-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-23-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-34-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-51-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-86-0x000000000B000000-0x000000000B031000-memory.dmp	upx
behavioral2/memory/4744-230-0x000000000B000000-0x000000000B031000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~3\j61g7t81.fee	rundll32.exe
File created	C:\PROGRA~3\18t7g16j.cpp	rundll32.exe
File created	C:\PROGRA~3\j61g7t81.fee	rundll32.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 2400	4432	rundll32.exe	83
PID 4432 wrote to memory of 2400	4432	rundll32.exe	83
PID 4432 wrote to memory of 2400	4432	rundll32.exe	83
PID 2400 wrote to memory of 4744	2400	rundll32.exe	84
PID 2400 wrote to memory of 4744	2400	rundll32.exe	84
PID 2400 wrote to memory of 4744	2400	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_849c748f9a37d4125779f6b31435d220.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_849c748f9a37d4125779f6b31435d220.dll,#1
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\PROGRA~3\18t7g16j.cpp,XXS1
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Drops file in Program Files directory
    PID:4744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\PROGRA~3\18t7g16j.cpp

Filesize
156KB

MD5
849c748f9a37d4125779f6b31435d220

SHA1
ab26f79f3726b2a066f73f2711d8362486ff93ce

SHA256
a7d1e0426d5ec9205c571cbafa558475f0a8fb701500a1353fd8fd5ad5a91c89

SHA512
131d7c664211b581d061005ad6686e4dd2191727ced66b371dbc34895f2f426bc57d93c97da2ed39bd47b00154c96827d7d4868001a62e7f1027d0aea621468c

Download Submit
C:\PROGRA~3\j61g7t81.fee

Filesize
90.6MB

MD5
5c71fe6debed22caf033932e729f4e2d

SHA1
851e007322f8f63cdfbe062c686c0f6cae175926

SHA256
af15c00cb1ebd8c5cfb4925d78fea1a2bc632f14b1cafd166271f8c23454ddc3

SHA512
33367fc939df13a3864b1a7ec85a457e9b3002c3946beff60dec0fb7c7707b0f7d034b9b443f81c2d8d3eaa3a06ad924fc272b1a006dbea8bc00993f4ecbb66e

Download Submit
memory/2400-17-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/2400-2-0x0000000000D50000-0x0000000000D51000-memory.dmp

Filesize
4KB

Download
memory/2400-3-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/2400-4-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/2400-0-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-11-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-10-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-23-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-34-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-51-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-86-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download
memory/4744-230-0x000000000B000000-0x000000000B031000-memory.dmp

Filesize
196KB

Download

Analysis

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