xworm | b6a0c0000264b84cffcf9fd20e7a6321a6ca97be8babf2092805fbb5ae577809

General

Target

injector.exe
Size

49KB
MD5

37fbd83271e9f0a2dbe4372ec015c23f
SHA1

7deaca82f648bc67b5cc86e20696fff3a6a957a9
SHA256

b6a0c0000264b84cffcf9fd20e7a6321a6ca97be8babf2092805fbb5ae577809
SHA512

a3eff87bf8f4d8265706aa366060b661628a8621441762078356e029ea23f6369bf3d807e33b4ca8ff0adb84f8ab17cd46fd7a5387237c2be81ba57d83c7d300
SSDEEP

768:ZWO7VMyjFxpyKlSFyx9DKx6YOjhNOKEkzbwonH8wSpO1bNX:ggVMy/sBFU9DU6YOjq1EwoH865F

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

https://pastebin.com/raw/r8P3Ngmc:324

Mutex

LrtSM6IVyhGy1fuw

Attributes

Install_directory
%AppData%
install_file
injector.exe
pastebin_url
https://pastebin.com/raw/r8P3Ngmc

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/3288-1-0x0000000000B30000-0x0000000000B42000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
4788	powershell.exe
3608	powershell.exe
3764	powershell.exe
2732	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\injector.lnk	injector.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\injector.lnk	injector.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-1-5-21-3119450053-3073099215-1938054741-1000\Software\Microsoft\Windows\CurrentVersion\Run\injector = "C:\\Users\\Admin\\AppData\\Roaming\\injector.exe"	injector.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 45 IoCs

Web Service

T1102

flow	ioc
16	pastebin.com
36	pastebin.com
44	pastebin.com
1	pastebin.com
9	pastebin.com
29	pastebin.com
37	pastebin.com
45	pastebin.com
2	pastebin.com
5	pastebin.com
8	pastebin.com
14	pastebin.com
22	pastebin.com
26	pastebin.com
30	pastebin.com
32	pastebin.com
40	pastebin.com
43	pastebin.com
12	pastebin.com
31	pastebin.com
11	pastebin.com
13	pastebin.com
17	pastebin.com
18	pastebin.com
20	pastebin.com
23	pastebin.com
28	pastebin.com
38	pastebin.com
41	pastebin.com
4	pastebin.com
24	pastebin.com
33	pastebin.com
47	pastebin.com
3	pastebin.com
6	pastebin.com
7	pastebin.com
19	pastebin.com
34	pastebin.com
35	pastebin.com
42	pastebin.com
10	pastebin.com
15	pastebin.com
21	pastebin.com
25	pastebin.com
39	pastebin.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
4788	powershell.exe
4788	powershell.exe
3608	powershell.exe
3608	powershell.exe
3764	powershell.exe
3764	powershell.exe
2732	powershell.exe
2732	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3288	injector.exe
Token: SeDebugPrivilege	4788	powershell.exe
Token: SeDebugPrivilege	3608	powershell.exe
Token: SeDebugPrivilege	3764	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 4788	3288	injector.exe	81
PID 3288 wrote to memory of 4788	3288	injector.exe	81
PID 3288 wrote to memory of 3608	3288	injector.exe	83
PID 3288 wrote to memory of 3608	3288	injector.exe	83
PID 3288 wrote to memory of 3764	3288	injector.exe	85
PID 3288 wrote to memory of 3764	3288	injector.exe	85
PID 3288 wrote to memory of 2732	3288	injector.exe	87
PID 3288 wrote to memory of 2732	3288	injector.exe	87

C:\Users\Admin\AppData\Local\Temp\injector.exe
"C:\Users\Admin\AppData\Local\Temp\injector.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3288
- 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\injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4788
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3608
- 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\injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3764
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2732

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

Filesize
944B

MD5
31ecf1713738a93d444bd45e96b028e0

SHA1
4027f688b819ee5d3a188b2cc32ad69a7985b0ba

SHA256
aa89c72463f9ce589f1e56899b579092aff9cbeac40716dbb617320a4438f422

SHA512
bd378d0cb5eba1c5c54b22c820984e6590cb0e3803f85e40223203d4afed0a4d7f8338c512b3c90561e96a6d048881e1a4efd64b030fefb93d22b502093ff0e3

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

Filesize
944B

MD5
2e0391d00f5bfbc34be70790f14d5edf

SHA1
fcb04d8599c23967de4f154a101be480933ab0d0

SHA256
1c0c0c86d7c736fc9fb148ac7cd6e67565dc5b76fa116ae3b000a79e91855136

SHA512
231b9cc6efb928f0748cef04f287d9204c4f7d2eb4bc27f345e9a1afc6d0675057978ca44d1a95334ee2380709aa6dbe74015fedff8f17611a64efcfb9f64d2a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_clvdcgtz.5mx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3288-1-0x0000000000B30000-0x0000000000B42000-memory.dmp

Filesize
72KB

Download
memory/3288-0-0x00007FFCCFE73000-0x00007FFCCFE75000-memory.dmp

Filesize
8KB

Download
memory/3288-54-0x00007FFCCFE70000-0x00007FFCD0932000-memory.dmp

Filesize
10.8MB

Download
memory/3288-53-0x00007FFCCFE70000-0x00007FFCD0932000-memory.dmp

Filesize
10.8MB

Download
memory/4788-10-0x00000283B1160000-0x00000283B1182000-memory.dmp

Filesize
136KB

Download
memory/4788-17-0x00007FFCCFE70000-0x00007FFCD0932000-memory.dmp

Filesize
10.8MB

Download
memory/4788-16-0x00007FFCCFE70000-0x00007FFCD0932000-memory.dmp

Filesize
10.8MB

Download
memory/4788-13-0x00007FFCCFE70000-0x00007FFCD0932000-memory.dmp

Filesize
10.8MB

Download
memory/4788-12-0x00007FFCCFE70000-0x00007FFCD0932000-memory.dmp

Filesize
10.8MB

Download
memory/4788-11-0x00007FFCCFE70000-0x00007FFCD0932000-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