xenorat | 819895f1a99faf768a9bd2e8c789d90725c2c9c3da9f446c1522907193ffe2c3

General

Target

afhvser.exe
Size

353KB
MD5

d51e11f21698000dc7834221d02d93a1
SHA1

d2a4196c36840b5eaabb9f585d504ebd8278840a
SHA256

819895f1a99faf768a9bd2e8c789d90725c2c9c3da9f446c1522907193ffe2c3
SHA512

c895c0c72f3b7bbb6bf88a366049aa833b775abf5fef6018f120975a4fb98e9866891a3f92cfd09267edbdd1fedc3e1e6b084239b15c4b6bf189ff2e81d61846
SSDEEP

6144:wAbK2Zy++MX+DvKbLPEEVna5zHQICkMUTOYoREG8gn3Hd9oZ2dHnI:5yBMuDv0atjzG8gn3Hd9oZ2NI

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

45.66.231.26

Mutex

Uolid_rat_nd8889j

Attributes

delay
60000
install_path
appdata
port
1356
startup_name
ace

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	afhvser.exe

Executes dropped EXE 2 IoCs

pid	Process
780	afhvser.exe
4700	afhvser.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3384 set thread context of 3992	3384	afhvser.exe	94
PID 780 set thread context of 4700	780	afhvser.exe	96

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afhvser.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afhvser.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afhvser.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afhvser.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
396	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3384	afhvser.exe
Token: SeDebugPrivilege	780	afhvser.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3384 wrote to memory of 3992	3384	afhvser.exe	94
PID 3992 wrote to memory of 780	3992	afhvser.exe	95
PID 3992 wrote to memory of 780	3992	afhvser.exe	95
PID 3992 wrote to memory of 780	3992	afhvser.exe	95
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 780 wrote to memory of 4700	780	afhvser.exe	96
PID 4700 wrote to memory of 396	4700	afhvser.exe	108
PID 4700 wrote to memory of 396	4700	afhvser.exe	108
PID 4700 wrote to memory of 396	4700	afhvser.exe	108

C:\Users\Admin\AppData\Local\Temp\afhvser.exe
"C:\Users\Admin\AppData\Local\Temp\afhvser.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Users\Admin\AppData\Local\Temp\afhvser.exe
  C:\Users\Admin\AppData\Local\Temp\afhvser.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Users\Admin\AppData\Roaming\XenoManager\afhvser.exe
    "C:\Users\Admin\AppData\Roaming\XenoManager\afhvser.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:780
  - - C:\Users\Admin\AppData\Roaming\XenoManager\afhvser.exe
      C:\Users\Admin\AppData\Roaming\XenoManager\afhvser.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4700
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /Create /TN "ace" /XML "C:\Users\Admin\AppData\Local\Temp\tmp863.tmp" /F
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:396

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4408,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
1⤵
PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\afhvser.exe.log

Filesize
706B

MD5
d95c58e609838928f0f49837cab7dfd2

SHA1
55e7139a1e3899195b92ed8771d1ca2c7d53c916

SHA256
0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

SHA512
405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp863.tmp

Filesize
1KB

MD5
df9b542895574a46efc01b67fead9cf0

SHA1
555023d5b61d5c786d82bd9a152a1d92cf18235b

SHA256
5e990e41ed6c474363adffaa8e111fa819f137f34a821fa06b2c50d286d04659

SHA512
ac61c3ba5805da1b6a9edc100c68851d3d756233c7d6578cd50cf8d47d1a58c72b5497427594725973739ad2aa609475d7f20d1a06ef10768cf3109d1b8bf4c8

Download Submit
C:\Users\Admin\AppData\Roaming\XenoManager\afhvser.exe

Filesize
353KB

MD5
d51e11f21698000dc7834221d02d93a1

SHA1
d2a4196c36840b5eaabb9f585d504ebd8278840a

SHA256
819895f1a99faf768a9bd2e8c789d90725c2c9c3da9f446c1522907193ffe2c3

SHA512
c895c0c72f3b7bbb6bf88a366049aa833b775abf5fef6018f120975a4fb98e9866891a3f92cfd09267edbdd1fedc3e1e6b084239b15c4b6bf189ff2e81d61846

Download Submit
memory/780-26-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/780-27-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/780-31-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/780-28-0x0000000005820000-0x0000000005876000-memory.dmp

Filesize
344KB

Download
memory/3384-8-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/3384-6-0x000000000E3B0000-0x000000000E954000-memory.dmp

Filesize
5.6MB

Download
memory/3384-1-0x0000000000700000-0x0000000000762000-memory.dmp

Filesize
392KB

Download
memory/3384-3-0x000000000DC70000-0x000000000DCC6000-memory.dmp

Filesize
344KB

Download
memory/3384-14-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/3384-5-0x000000000DD60000-0x000000000DDFC000-memory.dmp

Filesize
624KB

Download
memory/3384-2-0x0000000002B00000-0x0000000002B06000-memory.dmp

Filesize
24KB

Download
memory/3384-4-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/3384-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/3384-7-0x000000000DEA0000-0x000000000DF32000-memory.dmp

Filesize
584KB

Download
memory/3992-25-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/3992-12-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/3992-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4700-32-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4700-33-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4700-34-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads