xworm | 24201bf218d04d65430b3fa6100779967b1ed77ffb94fc986522861c429ec3e6

General

Target

XCnigga.exe
Size

74KB
MD5

6b67af317eaed9595eb9ee513372cd74
SHA1

2350eb719b4d5ddd8da7247ec637fba5be994204
SHA256

24201bf218d04d65430b3fa6100779967b1ed77ffb94fc986522861c429ec3e6
SHA512

ca8015b8e4d67d705eb17ed80302bf4eceea14d5386cd096d6b73e4a6694ef8e8c734a674c8218361842f22e8d1b2dc1523b87984fcbe08a374938ad5e545d1f
SSDEEP

1536:5nVzXcWbHadoyrUXbLjuogFWDg6nO6NRYKN4:37bHuXIbLj3g0DVO6Nd4

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%AppData%
install_file
XClient.exe
pastebin_url
https://pastebin.com/raw/6wUPPUDa

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2808-1-0x0000000000310000-0x0000000000328000-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
1872	powershell.exe
2344	powershell.exe
4780	powershell.exe
3264	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	XCnigga.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XCnigga.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XCnigga.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XCnigga.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 44 IoCs

Web Service

T1102

flow	ioc
61	pastebin.com
62	pastebin.com
64	pastebin.com
84	pastebin.com
89	pastebin.com
19	pastebin.com
28	pastebin.com
49	pastebin.com
59	pastebin.com
73	pastebin.com
76	pastebin.com
40	pastebin.com
60	pastebin.com
16	pastebin.com
51	pastebin.com
71	pastebin.com
77	pastebin.com
82	pastebin.com
87	pastebin.com
83	pastebin.com
46	pastebin.com
47	pastebin.com
48	pastebin.com
50	pastebin.com
52	pastebin.com
58	pastebin.com
79	pastebin.com
85	pastebin.com
17	pastebin.com
25	pastebin.com
53	pastebin.com
65	pastebin.com
63	pastebin.com
80	pastebin.com
86	pastebin.com
88	pastebin.com
81	pastebin.com
20	pastebin.com
24	pastebin.com
54	pastebin.com
66	pastebin.com
74	pastebin.com
75	pastebin.com
78	pastebin.com

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
13	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1872	powershell.exe
1872	powershell.exe
2344	powershell.exe
2344	powershell.exe
4780	powershell.exe
4780	powershell.exe
3264	powershell.exe
3264	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	XCnigga.exe
Token: SeDebugPrivilege	1872	powershell.exe
Token: SeDebugPrivilege	2344	powershell.exe
Token: SeDebugPrivilege	4780	powershell.exe
Token: SeDebugPrivilege	3264	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 1872	2808	XCnigga.exe	87
PID 2808 wrote to memory of 1872	2808	XCnigga.exe	87
PID 2808 wrote to memory of 2344	2808	XCnigga.exe	89
PID 2808 wrote to memory of 2344	2808	XCnigga.exe	89
PID 2808 wrote to memory of 4780	2808	XCnigga.exe	91
PID 2808 wrote to memory of 4780	2808	XCnigga.exe	91
PID 2808 wrote to memory of 3264	2808	XCnigga.exe	93
PID 2808 wrote to memory of 3264	2808	XCnigga.exe	93

C:\Users\Admin\AppData\Local\Temp\XCnigga.exe
"C:\Users\Admin\AppData\Local\Temp\XCnigga.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- 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\XCnigga.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1872
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XCnigga.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2344
- 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\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4780
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

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\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
b1a1d8b05525b7b0c5babfd80488c1f2

SHA1
c85bbd6b7d0143676916c20fd52720499c2bb5c6

SHA256
adad192fc86c2f939fd3f70cb9ad323139a4e100f7c90b4454e2c53bdbc9b705

SHA512
346c6513c1373bab58439e37d3f75de1c5c587d7eb27076cf696e885a027b3b38d70b585839d1a2e7f2270cdcf0dac8c1fdff799f3b1158242ae9e3364c2a06e

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

Filesize
944B

MD5
743b15d0e2a0ceb83119dc17ee49b1cc

SHA1
08caaf15c50393e0a8abcadfb30cd017ce3f9fc0

SHA256
70f62097a48ff54ffdbf69b99b013b3615c4b1d832385816fd25d78fcfd238c0

SHA512
12cdcbc6efb42aaadda838837cf37bfecaeea60f0418829cf5e3e428ec52e1153cabee48a3ac24e7e8d0cfec9b9ba45807a699f834b4600eb91224753fd56051

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cjdbvazc.e2d.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1872-5-0x000001B055EC0000-0x000001B055EE2000-memory.dmp

Filesize
136KB

Download
memory/1872-15-0x00007FFB42CD0000-0x00007FFB43791000-memory.dmp

Filesize
10.8MB

Download
memory/1872-16-0x00007FFB42CD0000-0x00007FFB43791000-memory.dmp

Filesize
10.8MB

Download
memory/1872-19-0x00007FFB42CD0000-0x00007FFB43791000-memory.dmp

Filesize
10.8MB

Download
memory/1872-4-0x00007FFB42CD0000-0x00007FFB43791000-memory.dmp

Filesize
10.8MB

Download
memory/1872-3-0x00007FFB42CD0000-0x00007FFB43791000-memory.dmp

Filesize
10.8MB

Download
memory/2808-0-0x00007FFB42CD3000-0x00007FFB42CD5000-memory.dmp

Filesize
8KB

Download
memory/2808-2-0x00007FFB42CD0000-0x00007FFB43791000-memory.dmp

Filesize
10.8MB

Download
memory/2808-1-0x0000000000310000-0x0000000000328000-memory.dmp

Filesize
96KB

Download
memory/2808-58-0x00007FFB42CD0000-0x00007FFB43791000-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