fba2e1c3892ab5ad870da43781366524acbef4d4c2ee6364f9854d22ecfab826

Analysis

max time kernel
105s
max time network
11s
platform
windows7_x64
resource
win7v20210410
submitted
14/04/2021, 05:49

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General

Target
訂單（2275875577）樣本.exe
Size 888KB
Sample210414-5cttv565vs
SHA256 fba2e1c3892ab5ad870da43781366524acbef4d4c2ee6364f9854d22ecfab826
MD5 c9b299d9fc7ce4cc6fc4ecba881f6aa6
SHA1 48127841118cab84b95e3bbe7775883c8cb5cc7e
SHA512 368688628ab0b0df3593bec5acf336af8eb620ad055fbf6e149379ec582fec1b3eeb9f38fa573c051ea97e42a6232ad0d09eff36e9ea9f76ecf76abb42290dee
MD5 SHA1 SHA512

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
936	2040	WerFault.exe	20

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2040	訂單（2275875577）樣本.exe
2040	訂單（2275875577）樣本.exe
2040	訂單（2275875577）樣本.exe
936	WerFault.exe
936	WerFault.exe
936	WerFault.exe
936	WerFault.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	訂單（2275875577）樣本.exe
Token: SeDebugPrivilege	936	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 584	2040	訂單（2275875577）樣本.exe	29
PID 2040 wrote to memory of 584	2040	訂單（2275875577）樣本.exe	29
PID 2040 wrote to memory of 584	2040	訂單（2275875577）樣本.exe	29
PID 2040 wrote to memory of 584	2040	訂單（2275875577）樣本.exe	29
PID 2040 wrote to memory of 936	2040	訂單（2275875577）樣本.exe	31
PID 2040 wrote to memory of 936	2040	訂單（2275875577）樣本.exe	31
PID 2040 wrote to memory of 936	2040	訂單（2275875577）樣本.exe	31
PID 2040 wrote to memory of 936	2040	訂單（2275875577）樣本.exe	31

C:\Users\Admin\AppData\Local\Temp\訂單（2275875577）樣本.exe
"C:\Users\Admin\AppData\Local\Temp\訂單（2275875577）樣本.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\urjxDXnSig" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC0F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 1048
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/936-69-0x0000000000470000-0x0000000000471000-memory.dmp

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memory/2040-60-0x0000000000E30000-0x0000000000E31000-memory.dmp

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memory/2040-62-0x00000000048F0000-0x00000000048F1000-memory.dmp

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memory/2040-63-0x0000000000540000-0x0000000000546000-memory.dmp

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memory/2040-64-0x0000000005050000-0x00000000050EB000-memory.dmp

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memory/2040-65-0x0000000004400000-0x000000000445D000-memory.dmp

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