xloader | 228f0e866b6580e0799a21147d9fbf4d6e56a5b89b9b68dcb29ca4d15d18f484

Analysis

max time kernel
111s
max time network
42s
platform
windows7_x64
resource
win7v20210410
submitted
29/06/2021, 07:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Owen.exe
Size 205KB
Sample210629-4a6tzhcaaa
SHA256 228f0e866b6580e0799a21147d9fbf4d6e56a5b89b9b68dcb29ca4d15d18f484
MD5 9d3a4617434a46dcae2b7d319b941705
SHA1 5420c6392a6cbdd57969c9c8c87615cff5036e25
SHA512 9f68eb98b57d635f14ea72ccaf9e515420f0af475061a0bc91ab23dcae493bd64eb886e26dcd272ca1f43b0afea6a088177c66a5f397a40c9198d9bbe6f49bee
MD5 SHA1 SHA512

Score

10^/10

xloader loader rat

Malware Config

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/1708-62-0x000000000045D010-mapping.dmp	xloader

Loads dropped DLL 1 IoCs

pid	Process
1092	Owen.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1092 set thread context of 1708	1092	Owen.exe	29

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
1360	1708	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1360	WerFault.exe
1360	WerFault.exe
1360	WerFault.exe
1360	WerFault.exe
1360	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1360	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1360	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1092 wrote to memory of 1708	1092	Owen.exe	29
PID 1708 wrote to memory of 1360	1708	Owen.exe	30
PID 1708 wrote to memory of 1360	1708	Owen.exe	30
PID 1708 wrote to memory of 1360	1708	Owen.exe	30
PID 1708 wrote to memory of 1360	1708	Owen.exe	30

C:\Users\Admin\AppData\Local\Temp\Owen.exe
"C:\Users\Admin\AppData\Local\Temp\Owen.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Users\Admin\AppData\Local\Temp\Owen.exe
  "C:\Users\Admin\AppData\Local\Temp\Owen.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 36
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1092-59-0x0000000075A31000-0x0000000075A33000-memory.dmp

Download

memory/1360-66-0x0000000000560000-0x0000000000592000-memory.dmp

Download