phobos | f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f | Triage

Sharing

General

Target

f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f_JC.exe
Size

266KB
Sample

231012-1gmgasbf7t
MD5

bca4f45fd63e9b7a8fb82ca92de246a2
SHA1

73819e4af3dc2200ae5eac87df6bda9c2d502134
SHA256

f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f
SHA512

6ad12488a43b28e97bb43cab7250ebd5b2f5a6437850a6c023f7a15ae5538905132f25a929c2efd240f113af2d038554e562ca5eb92835063ffd83b3f5b1c704
SSDEEP

6144:I0zUjNSOjOTbdiEB241vgA0E1JtHMEtxPvGFXpbc2:I0YjNSOj+8219Np0C2

Score

10^/10

phobos evasion persistence ransomware spyware stealer

Malware Config

Targets

- Target
  
  f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f_JC.exe
- Size
  
  266KB
- MD5
  
  bca4f45fd63e9b7a8fb82ca92de246a2
- SHA1
  
  73819e4af3dc2200ae5eac87df6bda9c2d502134
- SHA256
  
  f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f
- SHA512
  
  6ad12488a43b28e97bb43cab7250ebd5b2f5a6437850a6c023f7a15ae5538905132f25a929c2efd240f113af2d038554e562ca5eb92835063ffd83b3f5b1c704
- SSDEEP
  
  6144:I0zUjNSOjOTbdiEB241vgA0E1JtHMEtxPvGFXpbc2:I0YjNSOj+8219Np0C2
Score

10^/10

phobos evasion persistence ransomware spyware stealer
- Phobos
  Phobos ransomware appeared at the beginning of 2019.
  ransomware phobos
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Modifies boot configuration data using bcdedit
  ransomware evasion
- Renames multiple (78) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Deletes backup catalog
  Uses wbadmin.exe to inhibit system recovery.
  ransomware
- Modifies Windows Firewall
  evasion
- Drops startup file
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

Persistence

Create or Modify System Process

Windows Service

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Create or Modify System Process

Windows Service

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Indicator Removal

File Deletion

Modify Registry

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

Peripheral Device Discovery

System Information Discovery

Lateral Movement

Collection

Data from Local System

Exfiltration

Command and Control

Impact

Inhibit System Recovery

Resource Development

Reconnaissance

Tasks

static1

behavioral1

phobosevasionpersistenceransomware

behavioral2

phobosevasionpersistenceransomwarespywarestealer