xworm | f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4

General

Target

f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
Size

366KB
MD5

4f5692a403b1b3dd667c76ce1f11d880
SHA1

383940ce84f31672f1ce3e029a2a62f8c4fd71df
SHA256

f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4
SHA512

f0a1af04232e625800973b2b9f83d8273fffb7abda790007fef58b2e1a644a530a30df0bea2e66714ba7512f930a3e8b2af21b03119e783d563edcb22691b248
SSDEEP

6144:RCiEZuBipI7bg0f+UNozkuxatmxY4YihFOwoXrQnY9:kde7My2ogiXE

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Mutex

0LLXgeoJ4l4QFpG6

Attributes

install_file
USBDriver.exe
pastebin_url
https://pastebin.com/raw/FrUYqTuA

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1936-44-0x000000001D650000-0x000000001D664000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1416	powershell.exe
2300	powershell.exe
4192	powershell.exe

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe

Executes dropped EXE 2 IoCs

pid	Process
1832	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
4608	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
20	pastebin.com
21	pastebin.com
22	4.tcp.eu.ngrok.io
41	4.tcp.eu.ngrok.io
68	4.tcp.eu.ngrok.io

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

System Information Discovery
T1082

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
2184	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1416	powershell.exe
1416	powershell.exe
2300	powershell.exe
2300	powershell.exe
4192	powershell.exe
4192	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
Token: SeDebugPrivilege	1416	powershell.exe
Token: SeDebugPrivilege	2300	powershell.exe
Token: SeDebugPrivilege	4192	powershell.exe
Token: SeDebugPrivilege	1832	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
Token: SeDebugPrivilege	4608	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 1416	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	83
PID 1936 wrote to memory of 1416	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	83
PID 1936 wrote to memory of 2300	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	86
PID 1936 wrote to memory of 2300	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	86
PID 1936 wrote to memory of 4192	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	89
PID 1936 wrote to memory of 4192	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	89
PID 1936 wrote to memory of 2184	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	92
PID 1936 wrote to memory of 2184	1936	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe	92

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
"C:\Users\Admin\AppData\Local\Temp\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1416
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2300
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4192
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /rl highest /tn "f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N" /tr "C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2184

C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1832

C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe

Filesize
366KB

MD5
4f5692a403b1b3dd667c76ce1f11d880

SHA1
383940ce84f31672f1ce3e029a2a62f8c4fd71df

SHA256
f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4

SHA512
f0a1af04232e625800973b2b9f83d8273fffb7abda790007fef58b2e1a644a530a30df0bea2e66714ba7512f930a3e8b2af21b03119e783d563edcb22691b248

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4N.exe.log

Filesize
1KB

MD5
a8a147915e3a996fdbe10b3a3f1e1bb2

SHA1
abc564c1be468d57e700913e7b6cf8f62d421263

SHA256
8b96a8557deea66696837af011843d6a82451ba57c8f9b5a2726a70818d6fc7e

SHA512
17b42f17ef60a9f625703172763f692e5ed2ca93564a97853dfa72bb0ac6305ef3267aea0b205938e3aa8eac10156d9d4f322b30d0329d92d647bcec6372731c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
0fd3f36f28a947bdd05f1e05acf24489

SHA1
cf12e091a80740df2201c5b47049dd231c530ad3

SHA256
d36c21211f297a74a801881707690fa7a0a0a31addd3c7ba1522275b8848ab50

SHA512
5f132308b06e621aace1091f523649bcb5d1823b478691799791f4154cb96b9897f563eed8ad8db4a03714d815246479372e0920c659eb3fd9006271e58429ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jpiuvom2.1s0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1416-18-0x00007FFF29230000-0x00007FFF29CF1000-memory.dmp

Filesize
10.8MB

Download
memory/1416-15-0x00007FFF29230000-0x00007FFF29CF1000-memory.dmp

Filesize
10.8MB

Download
memory/1416-14-0x00007FFF29230000-0x00007FFF29CF1000-memory.dmp

Filesize
10.8MB

Download
memory/1416-13-0x00007FFF29230000-0x00007FFF29CF1000-memory.dmp

Filesize
10.8MB

Download
memory/1416-8-0x0000023063E70000-0x0000023063E92000-memory.dmp

Filesize
136KB

Download
memory/1936-0-0x00007FFF29233000-0x00007FFF29235000-memory.dmp

Filesize
8KB

Download
memory/1936-43-0x000000001D130000-0x000000001D18C000-memory.dmp

Filesize
368KB

Download
memory/1936-44-0x000000001D650000-0x000000001D664000-memory.dmp

Filesize
80KB

Download
memory/1936-45-0x00007FFF29233000-0x00007FFF29235000-memory.dmp

Filesize
8KB

Download
memory/1936-46-0x00007FFF29230000-0x00007FFF29CF1000-memory.dmp

Filesize
10.8MB

Download
memory/1936-2-0x00007FFF29230000-0x00007FFF29CF1000-memory.dmp

Filesize
10.8MB

Download
memory/1936-1-0x0000000000D90000-0x0000000000DF2000-memory.dmp

Filesize
392KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads