xworm | f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4

General

Target

f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.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/3184-45-0x000000001C870000-0x000000001C884000-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
2376	powershell.exe
4168	powershell.exe
3684	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe

Executes dropped EXE 3 IoCs

pid	Process
4128	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
1072	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
2556	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
21	4.tcp.eu.ngrok.io
48	4.tcp.eu.ngrok.io
71	4.tcp.eu.ngrok.io
81	4.tcp.eu.ngrok.io
18	pastebin.com
19	pastebin.com

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
3584	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2376	powershell.exe
2376	powershell.exe
4168	powershell.exe
4168	powershell.exe
3684	powershell.exe
3684	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
Token: SeDebugPrivilege	2376	powershell.exe
Token: SeDebugPrivilege	4168	powershell.exe
Token: SeDebugPrivilege	3684	powershell.exe
Token: SeDebugPrivilege	4128	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
Token: SeDebugPrivilege	1072	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
Token: SeDebugPrivilege	2556	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 2376	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	83
PID 3184 wrote to memory of 2376	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	83
PID 3184 wrote to memory of 4168	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	85
PID 3184 wrote to memory of 4168	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	85
PID 3184 wrote to memory of 3684	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	87
PID 3184 wrote to memory of 3684	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	87
PID 3184 wrote to memory of 3584	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	89
PID 3184 wrote to memory of 3584	3184	f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe	89

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\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
"C:\Users\Admin\AppData\Local\Temp\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2376
- 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\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4168
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3684
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /rl highest /tn "f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4" /tr "C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3584

C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4128

C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1072

C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
C:\ProgramData\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2556

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\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.exe

Filesize
366KB

MD5
4f5692a403b1b3dd667c76ce1f11d880

SHA1
383940ce84f31672f1ce3e029a2a62f8c4fd71df

SHA256
f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4

SHA512
f0a1af04232e625800973b2b9f83d8273fffb7abda790007fef58b2e1a644a530a30df0bea2e66714ba7512f930a3e8b2af21b03119e783d563edcb22691b248

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\f1db2121b89f530bd74ed44c8a14e2ee3734db74fbb722f16c9f2466fb6e23c4.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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
af288982e645118908811ac52f1a1c5f

SHA1
6574ca3e8315a7076fec87c00f7815436b68c3fe

SHA256
1269c152c49a77e8b8c0c3d95d3539828b5c1f036d9f00501a2303cbc92d9317

SHA512
cc4baf4a9283a1b796e1259853de9623d70eb04c0239128bc8d7f8577043880c77004fb9ece85161e3266b712a82643be1daab69d0aae79b919d665dc95dcbcf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rpx3cm3r.5aw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2376-8-0x000002D7CCEE0000-0x000002D7CCF02000-memory.dmp

Filesize
136KB

Download
memory/2376-15-0x00007FF8A8570000-0x00007FF8A9031000-memory.dmp

Filesize
10.8MB

Download
memory/2376-18-0x00007FF8A8570000-0x00007FF8A9031000-memory.dmp

Filesize
10.8MB

Download
memory/2376-14-0x00007FF8A8570000-0x00007FF8A9031000-memory.dmp

Filesize
10.8MB

Download
memory/2376-10-0x00007FF8A8570000-0x00007FF8A9031000-memory.dmp

Filesize
10.8MB

Download
memory/3184-0-0x00007FF8A8573000-0x00007FF8A8575000-memory.dmp

Filesize
8KB

Download
memory/3184-44-0x000000001C490000-0x000000001C4EC000-memory.dmp

Filesize
368KB

Download
memory/3184-45-0x000000001C870000-0x000000001C884000-memory.dmp

Filesize
80KB

Download
memory/3184-46-0x00007FF8A8573000-0x00007FF8A8575000-memory.dmp

Filesize
8KB

Download
memory/3184-47-0x00007FF8A8570000-0x00007FF8A9031000-memory.dmp

Filesize
10.8MB

Download
memory/3184-48-0x000000001C4F0000-0x000000001C5F2000-memory.dmp

Filesize
1.0MB

Download
memory/3184-2-0x00007FF8A8570000-0x00007FF8A9031000-memory.dmp

Filesize
10.8MB

Download
memory/3184-1-0x00000000000F0000-0x0000000000152000-memory.dmp

Filesize
392KB

Download
memory/4168-31-0x000001B67B640000-0x000001B67B85C000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads