xenorat | 7c6128c14c5b288d416ac1bf21867189707461a9e2fa7751242c4442a60fbc26

General

Target

bootstrapper.exe
Size

45KB
MD5

e81a0f3b4984dec8536b391263fa387d
SHA1

e93a4e6c2c1deed94da6fccfd0500c71f4a8fab0
SHA256

7c6128c14c5b288d416ac1bf21867189707461a9e2fa7751242c4442a60fbc26
SHA512

888f75ac223a4f31e152d6943fa4030789cdb3a5d75ef529d3541ec6d109afdae8fbfc5434e3afae9c59db9b6616caae83c09b996546153d4ae3591eb5f7520b
SSDEEP

768:hdhO/poiiUcjlJIngtUH9Xqk5nWEZ5SbTDacWI7CPW55:fw+jjgnuUH9XqcnW85SbT1WIB

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
temp
port
4444
startup_name
Client

Signatures

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2192-1-0x00000000001A0000-0x00000000001B2000-memory.dmp	family_xenorat
behavioral1/files/0x00090000000234c0-6.dat	family_xenorat

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	bootstrapper.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	bootstrapper.exe

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 3 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	bootstrapper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bootstrapper.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
320	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2496	2192	bootstrapper.exe	82
PID 2192 wrote to memory of 2496	2192	bootstrapper.exe	82
PID 2192 wrote to memory of 2496	2192	bootstrapper.exe	82
PID 2496 wrote to memory of 320	2496	bootstrapper.exe	83
PID 2496 wrote to memory of 320	2496	bootstrapper.exe	83
PID 2496 wrote to memory of 320	2496	bootstrapper.exe	83

C:\Users\Admin\AppData\Local\Temp\bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\bootstrapper.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\XenoManager\bootstrapper.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\bootstrapper.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "Client" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF83.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:320

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\bootstrapper.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\XenoManager\bootstrapper.exe

Filesize
45KB

MD5
e81a0f3b4984dec8536b391263fa387d

SHA1
e93a4e6c2c1deed94da6fccfd0500c71f4a8fab0

SHA256
7c6128c14c5b288d416ac1bf21867189707461a9e2fa7751242c4442a60fbc26

SHA512
888f75ac223a4f31e152d6943fa4030789cdb3a5d75ef529d3541ec6d109afdae8fbfc5434e3afae9c59db9b6616caae83c09b996546153d4ae3591eb5f7520b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDF83.tmp

Filesize
1KB

MD5
7bb57db424cbf91948e17070a468c113

SHA1
27137c051392435f29e45d73784505fbc8733c44

SHA256
337964d700d144271eb7bf73f8e17e4ea0fbd7fa07f984a5af8774541ffbc637

SHA512
230cb14b0c6bdcb03857c76ea69bf2f7e394879cebf984f54a4c96b68ef452ade22f9d5d1a52b683b717816f34ea05d219348460616ae213a6fcfe64017c86b2

Download Submit
memory/2192-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/2192-1-0x00000000001A0000-0x00000000001B2000-memory.dmp

Filesize
72KB

Download
memory/2496-15-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-18-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-19-0x0000000074B10000-0x00000000752C0000-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