xenorat | 3735a7b547602ed8858e6d608cb96dddf81d168dd0ba28afe5f79790d05804f6

General

Target
ohj.exe
Size 47KB
Sample261102-q1vxnsfc44
SHA256 3735a7b547602ed8858e6d608cb96dddf81d168dd0ba28afe5f79790d05804f6
MD5 59a4004eb5641d1ead50d4225e6faa19
SHA1 ec0c6e177f9ac669267bb9b1cf78981709a91cd8
SHA512 1adb4052bad2921d4179bad2bb6cb8b83406e69a4516098a9d9276d648ed2d4d2f692cd0a0537fa446390bd64f6e158128cc84b131a317b7117668c94a9f75f4
SSDEEP 768:HjdPC8xkvd0vnil8jx58mO8wC3CffnzZ5SbuDD4KP0529cXWSFozulCrAB1EmIHx:HxNSd4igEo3ufnt5SbuFmIR
TLSH
T1CF23E74C676D8523F6AF5ABD9872428387B7F322A532E38F08CCC4D8278778549453A7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xenorat persistence rat trojan

Malware Config

Extracted

Family

xenorat

C2

mu88a2.com

Mutex

robo

Attributes

delay
5000
install_path
temp
port
80
startup_name
winservice.msi

Signatures

Family: XenoRat
XenoRat is a remote access trojan written in C#.
trojan rat xenorat

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral2/memory/5088-0-0x00000000000A0000-0x00000000000B2000-memory.dmp	family_xenorat
behavioral2/files/0x00070000000284c4-3.dat	family_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-1-5-21-4003929486-1233426720-3594832368-1000\Control Panel\International\Geo\Nation	ohj.exe

Executes dropped EXE 2 IoCs

pid	Process
4540	ohj.exe
2972	ohj.exe

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

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ohj.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ohj.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ohj.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ohj.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ohj.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ohj.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	ohj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ohj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ohj.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
3480	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5088	ohj.exe
Token: SeDebugPrivilege	4540	ohj.exe
Token: SeDebugPrivilege	2972	ohj.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 4540	5088	ohj.exe	91
PID 4540 wrote to memory of 3480	4540	ohj.exe	92

C:\Users\Admin\AppData\Local\Temp\ohj.exe
"C:\Users\Admin\AppData\Local\Temp\ohj.exe"
1⤵
- Checks computer location settings
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Users\Admin\AppData\Local\Temp\XenoManager\ohj.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\ohj.exe"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4540
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "winservice.msi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp573E.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3480

C:\Users\Admin\AppData\Local\Temp\XenoManager\ohj.exe
C:\Users\Admin\AppData\Local\Temp\XenoManager\ohj.exe
1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2972

Network

MITRE ATT&CK Enterprise v16

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

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

ohj.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ohj.exe.log
Size 847B
SHA256 4597cbb41260631877633b75248620cbff79d2359c5f553b41d1e845080f6399
MD5 72305e6c7d0336a5b729781f69fcd4af
SHA1 afc5955b5f991f9845b795dc207582b3d9500a1a
SHA512 e6b375610cdbfa36925fb77999fb5adcdb34b7a4805f560ba1222568ab3b22fbb10c2e069979ad01cb7fe543495d9ce459cb43b8769b462a2f152e86aa1eb5d9
TLSH
T1CC018E312331B1D589423F43195C29C516FF47847564FE2C75D9225FD92B01B2F222E3
MD5 SHA1 SHA512 TLSH

Submit Download

ohj.exe

Path C:\Users\Admin\AppData\Local\Temp\XenoManager\ohj.exe
Size 47KB
SHA256 3735a7b547602ed8858e6d608cb96dddf81d168dd0ba28afe5f79790d05804f6
MD5 59a4004eb5641d1ead50d4225e6faa19
SHA1 ec0c6e177f9ac669267bb9b1cf78981709a91cd8
SHA512 1adb4052bad2921d4179bad2bb6cb8b83406e69a4516098a9d9276d648ed2d4d2f692cd0a0537fa446390bd64f6e158128cc84b131a317b7117668c94a9f75f4
SSDEEP 768:HjdPC8xkvd0vnil8jx58mO8wC3CffnzZ5SbuDD4KP0529cXWSFozulCrAB1EmIHx:HxNSd4igEo3ufnt5SbuFmIR
TLSH
T1CF23E74C676D8523F6AF5ABD9872428387B7F322A532E38F08CCC4D8278778549453A7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

tmp573E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp573E.tmp
Size 1KB
SHA256 1173e6bc82997825cffe083ade8beb5a099a6a9234f280b1f4da5fdcf9d05bce
MD5 ffe159de7ec6275788d2d3a87f980419
SHA1 eba67ee5d707b00137c73d67c30875d7e1e546f2
SHA512 442f174900c1bbc3a929a5f82319d70b9ad59018083481f8b613edfecbdb655a32ee8176949b9f502761e8946adc47e9ccf887b3f31076466c4697d9f99a22b8
TLSH
T1AF1199B2E4F16A026216182483925A436D66A3AB46660078F8CC8628BF8FDCE504336B
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4540-6-0x00000000049E0000-0x00000000049F0000-memory.dmp

Download

memory/4540-7-0x00000000049E0000-0x00000000049F0000-memory.dmp

Download

memory/5088-0-0x00000000000A0000-0x00000000000B2000-memory.dmp

Download

memory/5088-1-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

Download

memory/5088-2-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads