avoslocker | 1198fb9117776809b11a19000161377384957bee846f7b25a610fc8ca082eb37

Resubmissions

11-05-2023 15:49

230511-s9f6zsad87 10

11-05-2023 15:45

230511-s7b49agc64 10

03-05-2023 23:25

230503-3edsgsba4x 10

03-05-2023 11:43

230503-nv3n8aee94 10

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General

Target

Avos2.zip
Size

371KB
Sample

230511-s9f6zsad87
MD5

c9f97820c06f85a39359d97489379925
SHA1

631206da423a9f5a5b973831e1c7efb84c8e493e
SHA256

1198fb9117776809b11a19000161377384957bee846f7b25a610fc8ca082eb37
SHA512

a18c9bdea81b2076e6eda79a72aff0fb4cd4b94e76cd0471f0d4c29920d71ec89d6dca0a93cc3b197121ccc9d8d592a53a6abcda523464c7c949d4ad9b1a9c99
SSDEEP

6144:PgbXn1IPkVEerYs94ZmfIOkTJcd/SV16n0Kbfm3b2iM5hoiaquJxv+H:oD1fVjSqkV163ab2iIFaRv+H

Score

10^/10

Malware Config

Targets

- Target
  
  5d6e4bd7bd7239fab20e043fb292974497297af89759b1b0d48d7d006e5e96fa
- Size
  
  807KB
- MD5
  
  1a23dd405a1bd4e488c5fb54f22e14ff
- SHA1
  
  73b1d319fb361e591c2e6a65caaea73186f51193
- SHA256
  
  5d6e4bd7bd7239fab20e043fb292974497297af89759b1b0d48d7d006e5e96fa
- SHA512
  
  b9ff21124e04ec7c9e5159cc7cc8ce1110b35941c7a1235b4bd55911ad17c03ace3ce1173e784e6154b09a6eb21da880b7f54886bda589e6293e69d92337f80b
- SSDEEP
  
  12288:0Z4s3rg9u/2/oT+NXtHLlP/O+OeO+OeNhBBhhBBAtHg9rjI+LXJ0ivlzkHBDsYA:u4s+oT+NXBLi0rjFXvyHBlb4CZa8
Score

10^/10

avoslocker evasion ransomware
- Avoslocker Ransomware
  Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.
  ransomware avoslocker
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Modifies boot configuration data using bcdedit
  ransomware evasion
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Drops desktop.ini file(s)
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Sets desktop wallpaper using registry
  ransomware
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Tasks

Resubmissions

Sharing

General

Malware Config

Targets

Avoslocker Ransomware

Deletes shadow copies

Modifies boot configuration data using bcdedit

Modifies extensions of user files

Drops desktop.ini file(s)

Enumerates connected drives

Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks

static1

behavioral1

behavioral2