a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590

Analysis

max time kernel
128s
max time network
153s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 09:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe
Size 247KB
Sample221204-ltejwscc2x
SHA256 a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590
MD5 2bf5bb53aecb29ded19bf982a28f2a77
SHA1 dc3ad09104220460d4d1bd26b50ee33f5221873d
SHA512 f633cb1b1be15142b9b54a8e10bac9d1b0601f4339f8277d22022cc7712f4c66534a4e8d19138c249e80d52dbab4583e0f84052fb0e54e82de88f2af81523ace
SSDEEP 6144:M75VB50aNosWWjOi8tXu1Xevfql2+6d93zGJ08QfP0ai9o3OxS2xk/R:K5VnKsWN+wGO89ai9UOZk
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

evasion persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\winx32 = "C:\\Windows\\system32\\bot\\lsrss.exe"	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1396	netsh.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\bot\lsrss.exe	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe
File opened for modification	C:\Windows\SysWOW64\bot\lsrss.exe	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe
File created	C:\Windows\SysWOW64\www\rel.txt	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.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 4 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 1396	1076	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe	27
PID 1076 wrote to memory of 1396	1076	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe	27
PID 1076 wrote to memory of 1396	1076	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe	27
PID 1076 wrote to memory of 1396	1076	a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe	27

C:\Users\Admin\AppData\Local\Temp\a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe
"C:\Users\Admin\AppData\Local\Temp\a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe"
1⤵
- Adds policy Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a3cc4e0a611bf32204395e0ce5df69b65c182e09e2f73c553111ec2621932590.exe" Ftp ENABLE
  2⤵
  - Modifies Windows Firewall
  PID:1396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1076-54-0x0000000075141000-0x0000000075143000-memory.dmp

Download

memory/1076-55-0x0000000000400000-0x00000000004BB000-memory.dmp

Download

memory/1076-58-0x0000000000400000-0x00000000004BB000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads