xworm | e03b63507efaff9f6b7a50cc018fbd2792879c99723dd14577a5d371324333ce

General

Target

PrivateCheat.exe
Size

1.7MB
MD5

21b0523a2f28a5b9e67485f15ae66768
SHA1

fa236541f49bc464bbc90c738842783b46c375d5
SHA256

e03b63507efaff9f6b7a50cc018fbd2792879c99723dd14577a5d371324333ce
SHA512

72ba597085dd4ca63de7c6df2018c95693ac4f3c101335d667c4e9f140085f1990ad73c522783771ae34202cd9d04510b6cd2108372afe64ce01d78bb17a428b
SSDEEP

49152:wxtKC/D2aa/g/Kc7+FR2auMPURVLA+1iVKwn0jI2:AtKAqoScMRTkRiVKwn0jI2

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:21252

land-long.gl.at.ply.gg:21252

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023cab-6.dat	family_xworm
behavioral2/memory/4840-17-0x00000000004A0000-0x00000000004B6000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3000	powershell.exe
3580	powershell.exe
3428	powershell.exe
5024	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	PrivateCheat.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	rat test xworm.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	rat test xworm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	rat test xworm.exe

Executes dropped EXE 5 IoCs

pid	Process
4840	rat test xworm.exe
3980	Kryptoware Private Auth.exe
2904	svchost.exe
4412	svchost.exe
2924	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	rat test xworm.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.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
3468	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3428	powershell.exe
3428	powershell.exe
5024	powershell.exe
5024	powershell.exe
3000	powershell.exe
3000	powershell.exe
3580	powershell.exe
3580	powershell.exe
4840	rat test xworm.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	rat test xworm.exe
Token: SeDebugPrivilege	3428	powershell.exe
Token: SeDebugPrivilege	5024	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	3580	powershell.exe
Token: SeDebugPrivilege	4840	rat test xworm.exe
Token: SeDebugPrivilege	2904	svchost.exe
Token: SeDebugPrivilege	4412	svchost.exe
Token: SeDebugPrivilege	2924	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4840	rat test xworm.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 4840	4816	PrivateCheat.exe	82
PID 4816 wrote to memory of 4840	4816	PrivateCheat.exe	82
PID 4816 wrote to memory of 3980	4816	PrivateCheat.exe	83
PID 4816 wrote to memory of 3980	4816	PrivateCheat.exe	83
PID 4840 wrote to memory of 3428	4840	rat test xworm.exe	86
PID 4840 wrote to memory of 3428	4840	rat test xworm.exe	86
PID 4840 wrote to memory of 5024	4840	rat test xworm.exe	88
PID 4840 wrote to memory of 5024	4840	rat test xworm.exe	88
PID 4840 wrote to memory of 3000	4840	rat test xworm.exe	90
PID 4840 wrote to memory of 3000	4840	rat test xworm.exe	90
PID 4840 wrote to memory of 3580	4840	rat test xworm.exe	92
PID 4840 wrote to memory of 3580	4840	rat test xworm.exe	92
PID 4840 wrote to memory of 3468	4840	rat test xworm.exe	94
PID 4840 wrote to memory of 3468	4840	rat test xworm.exe	94

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\PrivateCheat.exe
"C:\Users\Admin\AppData\Local\Temp\PrivateCheat.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Users\Admin\AppData\Local\Temp\rat test xworm.exe
  "C:\Users\Admin\AppData\Local\Temp\rat test xworm.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4840
- - 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\rat test xworm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3428
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'rat test xworm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5024
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3000
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3580
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3468
- C:\Users\Admin\AppData\Local\Temp\Kryptoware Private Auth.exe
  "C:\Users\Admin\AppData\Local\Temp\Kryptoware Private Auth.exe"
  2⤵
  - Executes dropped EXE
  PID:3980

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2904

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4412

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2924

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
eb033be02578f9635ec47bdc1de5c3fb

SHA1
ec356bc87381354a06baa9c30e8c3ac3d30e0f6f

SHA256
bd827af3192bf83c75a32e51ed2de83bd3b90d6b99350721a189a57cec15d063

SHA512
4d8778503646f7016df73ff9d204760f4fe4d2b24157920ac3e5651653373975b2f2d229530143059f11b16c42822ad7963e628ad6066022ee712c17d90595ed

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

Filesize
944B

MD5
b1a1d8b05525b7b0c5babfd80488c1f2

SHA1
c85bbd6b7d0143676916c20fd52720499c2bb5c6

SHA256
adad192fc86c2f939fd3f70cb9ad323139a4e100f7c90b4454e2c53bdbc9b705

SHA512
346c6513c1373bab58439e37d3f75de1c5c587d7eb27076cf696e885a027b3b38d70b585839d1a2e7f2270cdcf0dac8c1fdff799f3b1158242ae9e3364c2a06e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Kryptoware Private Auth.exe

Filesize
3.1MB

MD5
e5668fa97f0e996ed5cce712558a95d0

SHA1
66b39e2a7ba8bc8c80abb4651b77890e4f492c44

SHA256
e3f69c162066dcb9815a4733d62140485083d388f7e8d85e0c3fdfc2d342cee5

SHA512
38ba1c1881011e482306060e91caeeafd7b3e992e74e01e0fbd7a29336da5a55a3f7ac3ace9792d7dd6e77d293709d4b3f576a3b67e3dd4cbac1a0cce9218a4f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uhxrt533.nsb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\rat test xworm.exe

Filesize
65KB

MD5
fbe7f61c52a1754815d5da441a4fb469

SHA1
5540bfc30a9b05f1972d896283bd1f107db18987

SHA256
5d8c53e451c55ce6969cfe254e0c22a3c48915c1400c66fc9dc806d7ad824f24

SHA512
e524006b40df8d3a677f20928d6fb5f31d08197d351bcfcdb30bd08cf041500794998728397119775d584f4f3f4359e7d881deea4aec9f9cc9add524454d4635

Download Submit
memory/3428-27-0x00000146F9FC0000-0x00000146F9FE2000-memory.dmp

Filesize
136KB

Download
memory/4816-25-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download
memory/4816-0-0x00007FFD7FAC3000-0x00007FFD7FAC5000-memory.dmp

Filesize
8KB

Download
memory/4816-11-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download
memory/4816-1-0x0000000000AC0000-0x0000000000C84000-memory.dmp

Filesize
1.8MB

Download
memory/4840-17-0x00000000004A0000-0x00000000004B6000-memory.dmp

Filesize
88KB

Download
memory/4840-26-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download
memory/4840-77-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download
memory/4840-20-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads