xenorat | ec60a432c1a530aae177d585e8308bb5ac93622ab8c91557b6b8995911586bf5

Analysis

max time kernel
292s
max time network
296s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-10-2024 00:26

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General

Target

Transferencia.exe
Size

712KB
MD5

205f93678f0207a93801654d71ddb792
SHA1

4f5aa1639d9c85d93060ebecd17fbe7f0fef313c
SHA256

3138fbe3448390de473a313644fd2a205e7e08de043d5097b37db857c40bfad0
SHA512

0784187f0c40f1d428c3b982797f95c29485c43b8197ecaff305f926994222bc7e1f7de4f98205376a86f81676485c232f8732c1e756d159a5bf74d13f1f5a20
SSDEEP

12288:JcrNS33L10QdrX4FBojL8DPNYnyV1Rotvwd2CO078/iY7Qlz9Rq/CvrvU:0NA3R5drX4GcPNYyr2voO078/iQI9RqN

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

87.120.116.115

Mutex

Xeno_rat_nd8912d

Attributes

delay
50000
install_path
appdata
port
1391
startup_name
nothingset

Signatures

Detect XenoRat Payload 1 IoCs

resource	yara_rule
behavioral2/memory/5036-33-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat

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

Checks computer location settings 2 TTPs 3 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Transferencia.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	fyudhid.sfx.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	fyudhid.exe

Executes dropped EXE 7 IoCs

pid	Process
1672	fyudhid.sfx.exe
1484	fyudhid.exe
5036	fyudhid.exe
1456	fyudhid.exe
2744	fyudhid.exe
3400	fyudhid.exe
264	fyudhid.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1484 set thread context of 5036	1484	fyudhid.exe	93
PID 1484 set thread context of 1456	1484	fyudhid.exe	94
PID 2744 set thread context of 3400	2744	fyudhid.exe	96
PID 2744 set thread context of 264	2744	fyudhid.exe	97

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2372	264	WerFault.exe	97
3008	3400	WerFault.exe	96

System Location Discovery: System Language Discovery 1 TTPs 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyudhid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyudhid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyudhid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Transferencia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NOTEPAD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyudhid.sfx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyudhid.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\Local Settings	Transferencia.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
244	NOTEPAD.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
312	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1484	fyudhid.exe
Token: SeDebugPrivilege	2744	fyudhid.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 1288	4668	Transferencia.exe	87
PID 4668 wrote to memory of 1288	4668	Transferencia.exe	87
PID 4668 wrote to memory of 1288	4668	Transferencia.exe	87
PID 4668 wrote to memory of 244	4668	Transferencia.exe	90
PID 4668 wrote to memory of 244	4668	Transferencia.exe	90
PID 4668 wrote to memory of 244	4668	Transferencia.exe	90
PID 1288 wrote to memory of 1672	1288	cmd.exe	91
PID 1288 wrote to memory of 1672	1288	cmd.exe	91
PID 1288 wrote to memory of 1672	1288	cmd.exe	91
PID 1672 wrote to memory of 1484	1672	fyudhid.sfx.exe	92
PID 1672 wrote to memory of 1484	1672	fyudhid.sfx.exe	92
PID 1672 wrote to memory of 1484	1672	fyudhid.sfx.exe	92
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 5036	1484	fyudhid.exe	93
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 1484 wrote to memory of 1456	1484	fyudhid.exe	94
PID 5036 wrote to memory of 2744	5036	fyudhid.exe	95
PID 5036 wrote to memory of 2744	5036	fyudhid.exe	95
PID 5036 wrote to memory of 2744	5036	fyudhid.exe	95
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 3400	2744	fyudhid.exe	96
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 2744 wrote to memory of 264	2744	fyudhid.exe	97
PID 1456 wrote to memory of 312	1456	fyudhid.exe	120
PID 1456 wrote to memory of 312	1456	fyudhid.exe	120
PID 1456 wrote to memory of 312	1456	fyudhid.exe	120

C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
"C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\fyudhid.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Users\Admin\AppData\Roaming\fyudhid.sfx.exe
    fyudhid.sfx.exe -dC:\Users\Admin\AppData\Roaming -pbotadelifsujhmgtpswngjMitredfdtixgtoqxqegujhtfeswczafugybsbBbsdhdqbqeku
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1672
  - - C:\Users\Admin\AppData\Roaming\fyudhid.exe
      "C:\Users\Admin\AppData\Roaming\fyudhid.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1484
    - - C:\Users\Admin\AppData\Roaming\fyudhid.exe
        
        C:\Users\Admin\AppData\Roaming\fyudhid.exe
        5⤵
        Checks computer location settings
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:5036
      - C:\Users\Admin\AppData\Roaming\UpdateManager\fyudhid.exe
        
        "C:\Users\Admin\AppData\Roaming\UpdateManager\fyudhid.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2744
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\fyudhid.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\fyudhid.exe
        7⤵
        Executes dropped EXE
        
        PID:3400
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 80
        8⤵
        Program crash
        
        PID:3008
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\fyudhid.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\fyudhid.exe
        7⤵
        Executes dropped EXE
        
        PID:264
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 264 -s 80
        8⤵
        Program crash
        
        PID:2372
    - - C:\Users\Admin\AppData\Roaming\fyudhid.exe
        
        C:\Users\Admin\AppData\Roaming\fyudhid.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1456
      - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /Create /TN "UpdateManager" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7FF9.tmp" /F
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:312
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\paymt_dates.txt
  2⤵
  - System Location Discovery: System Language Discovery
  - Opens file in notepad (likely ransom note)
  PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3400 -ip 3400
1⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 264 -ip 264
1⤵
PID:4564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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\fyudhid.exe.log

Filesize
706B

MD5
d95c58e609838928f0f49837cab7dfd2

SHA1
55e7139a1e3899195b92ed8771d1ca2c7d53c916

SHA256
0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

SHA512
405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7FF9.tmp

Filesize
1KB

MD5
b3936111cd0f3541ff0a5b1b98ab97b8

SHA1
93e7aac1d64cdbf0bd35b5b29e768a7be8f7a1c7

SHA256
e5589df5ada28fb330ce75e847e93b60ef4ba90003001c6cb7915fc1309a52d9

SHA512
bb88bb21cc7d335f9905f236e0b96ba8b0e9fed8427ef94d8d405b09b616836b169f23302a17ecda163bcb2a2383e9fcc91abcc2f9e0ad66b20a374b676b59bf

Download Submit
C:\Users\Admin\AppData\Roaming\fyudhid.bat

Filesize
16KB

MD5
92d61c851d77c26075f502b5683659cf

SHA1
6aa42164e0aa6ab877471f9dc9e9989435bfe272

SHA256
40c853fbdadf9cbe18c8bdab9c82f8b08c74f6471e0ed3872e3638770cd1ad1d

SHA512
b5690ba5f1095a5f25bc3b4dff739736bafbbd4c91bf8d833aefb3293e8c3d31085383150d841e7645e95eb361959e1bf2b3d85698d2b565b83018e4e80763fc

Download Submit
C:\Users\Admin\AppData\Roaming\fyudhid.exe

Filesize
248KB

MD5
fc52857470de4fba6092850903ac717b

SHA1
31a6cca56275235ede3c119e71179ade5f2e6920

SHA256
f7f878630e1d923f29845b0462d6449602457080a5b7ce7099db207598a3bec1

SHA512
c4c34e3e59fddc2305faa224f6d6349c66245e87e104f65885072aec780b8c18f62021cbb158c679bb0963d7b5c7c25a2194747f398df27b473b608012e2a2b3

Download Submit
C:\Users\Admin\AppData\Roaming\fyudhid.sfx.exe

Filesize
477KB

MD5
be09bfaf5845333ecbacdd6af8d35e03

SHA1
a1a6e588c3e44304604c9277f91f3bb562933c0e

SHA256
a10a3a94a9c0ed8bb2772c93a57d243ff6be9911aeaaaf03909f443226f6a64d

SHA512
3d9aa17b6fd84bd8c7791249d2734b9ad7858c1adf5d7db795ceda2627db1dc15b71d65bea55373881c8796125c8f22902250f62b360e661fa3f966edfab2b3f

Download Submit
C:\Users\Admin\AppData\Roaming\paymt_dates.txt

Filesize
24B

MD5
1f2dbffd7ff7d7d6dcbc424beda05107

SHA1
8d24f2aac5f1cb33b6c04d5a38257353f7f5bd86

SHA256
32497ecb378cdeb6844225e78c8b7297d9ae2553b3bd01483ce043177ccbad58

SHA512
018e645d4d46969a40e67342feba0b38c5af698d8ac25f2a38eb6af290f77f866cda1dad8d431a6eecc719dfe95af2b86a5db2eeab46593135a49b47902bf6a9

Download Submit
memory/1484-28-0x0000000005370000-0x00000000053B0000-memory.dmp

Filesize
256KB

Download
memory/1484-29-0x0000000008920000-0x00000000089BC000-memory.dmp

Filesize
624KB

Download
memory/1484-30-0x0000000008F70000-0x0000000009514000-memory.dmp

Filesize
5.6MB

Download
memory/1484-31-0x0000000008A60000-0x0000000008AF2000-memory.dmp

Filesize
584KB

Download
memory/1484-32-0x0000000006500000-0x0000000006506000-memory.dmp

Filesize
24KB

Download
memory/1484-27-0x0000000001490000-0x0000000001496000-memory.dmp

Filesize
24KB

Download
memory/1484-26-0x00000000009E0000-0x0000000000A26000-memory.dmp

Filesize
280KB

Download
memory/5036-33-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads