xworm | 5ad2e8363c51cc2392e5ea5c34fd426d585c118a1010cd034ccca53cb9aea8b0

General

Target

SigmaBoy.exe
Size

69KB
MD5

60efdd9e1cf39dd0a3a7fbdeb6a2d391
SHA1

29dbc62cedd344c115047fcec30f83e81c6d794c
SHA256

5ad2e8363c51cc2392e5ea5c34fd426d585c118a1010cd034ccca53cb9aea8b0
SHA512

c070114f7bbc384b5362111a70f1a910ecbf08b909d9e7b4222c904c221a107494e38840f5bc443faee8822281c5d46d65c7970003b7b625e7d1488ce6d58b84
SSDEEP

1536:fl/VpCz5Iqc+28akCkj42kbOOhW8DS6qfRtFAO5ZPYC:fldN8ak9kbbI8ot2O5ZPx

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7703

147.185.221.25:7703

regarding-states.gl.at.ply.gg:7703

Attributes

Install_directory
%AppData%
install_file
ApplicationFrameHost.exe
telegram
https://api.telegram.org/bot6353034618:AAHzEkRGIc7NNoV5QuVXoAVVOMmU4ikzPYc/sendMessage?chat_id=1735841155

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/4620-1-0x0000000000260000-0x0000000000278000-memory.dmp	family_xworm
behavioral1/files/0x000b000000023c96-59.dat	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
4288	powershell.exe
3644	powershell.exe
3440	powershell.exe
3364	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	SigmaBoy.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
2660	ApplicationFrameHost.exe
4988	ApplicationFrameHost.exe
2972	ApplicationFrameHost.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\ApplicationFrameHost = "C:\\Users\\Admin\\AppData\\Roaming\\ApplicationFrameHost.exe"	SigmaBoy.exe

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
3740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4288	powershell.exe
4288	powershell.exe
3644	powershell.exe
3644	powershell.exe
3440	powershell.exe
3440	powershell.exe
3364	powershell.exe
3364	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4620	SigmaBoy.exe
Token: SeDebugPrivilege	4288	powershell.exe
Token: SeDebugPrivilege	3644	powershell.exe
Token: SeDebugPrivilege	3440	powershell.exe
Token: SeDebugPrivilege	3364	powershell.exe
Token: SeDebugPrivilege	4620	SigmaBoy.exe
Token: SeDebugPrivilege	2660	ApplicationFrameHost.exe
Token: SeDebugPrivilege	4988	ApplicationFrameHost.exe
Token: SeDebugPrivilege	2972	ApplicationFrameHost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 4288	4620	SigmaBoy.exe	82
PID 4620 wrote to memory of 4288	4620	SigmaBoy.exe	82
PID 4620 wrote to memory of 3644	4620	SigmaBoy.exe	84
PID 4620 wrote to memory of 3644	4620	SigmaBoy.exe	84
PID 4620 wrote to memory of 3440	4620	SigmaBoy.exe	86
PID 4620 wrote to memory of 3440	4620	SigmaBoy.exe	86
PID 4620 wrote to memory of 3364	4620	SigmaBoy.exe	88
PID 4620 wrote to memory of 3364	4620	SigmaBoy.exe	88
PID 4620 wrote to memory of 3740	4620	SigmaBoy.exe	90
PID 4620 wrote to memory of 3740	4620	SigmaBoy.exe	90

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\SigmaBoy.exe
"C:\Users\Admin\AppData\Local\Temp\SigmaBoy.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4620
- 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\SigmaBoy.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4288
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SigmaBoy.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3644
- 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\ApplicationFrameHost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3440
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ApplicationFrameHost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3364
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "ApplicationFrameHost" /tr "C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3740

C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe
C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2660

C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe
C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4988

C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe
C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2972

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\ApplicationFrameHost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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
fa2a7b290bb600279289578e74054e98

SHA1
fff15c69327ef32fd00507b1f4211833ce74adac

SHA256
78ab5045fdc38a48f05da12c12c532459ca3f96195ca2aad644d3266da4bf7d4

SHA512
b98622a722818e03dc5bbfaf44b61604b38e2150fa103407f3b9fd1197b8257dba95995d297ebdd6c191454db458c1444cb061b52ca5f9ab3bec9652dbbf926a

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

Filesize
944B

MD5
10890cda4b6eab618e926c4118ab0647

SHA1
1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

SHA256
00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

SHA512
a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g5dnmdlm.2qt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\ApplicationFrameHost.exe

Filesize
69KB

MD5
60efdd9e1cf39dd0a3a7fbdeb6a2d391

SHA1
29dbc62cedd344c115047fcec30f83e81c6d794c

SHA256
5ad2e8363c51cc2392e5ea5c34fd426d585c118a1010cd034ccca53cb9aea8b0

SHA512
c070114f7bbc384b5362111a70f1a910ecbf08b909d9e7b4222c904c221a107494e38840f5bc443faee8822281c5d46d65c7970003b7b625e7d1488ce6d58b84

Download Submit
memory/4288-12-0x00007FFBAC560000-0x00007FFBAD021000-memory.dmp

Filesize
10.8MB

Download
memory/4288-17-0x00007FFBAC560000-0x00007FFBAD021000-memory.dmp

Filesize
10.8MB

Download
memory/4288-14-0x00007FFBAC560000-0x00007FFBAD021000-memory.dmp

Filesize
10.8MB

Download
memory/4288-13-0x00007FFBAC560000-0x00007FFBAD021000-memory.dmp

Filesize
10.8MB

Download
memory/4288-2-0x00000229F97C0000-0x00000229F97E2000-memory.dmp

Filesize
136KB

Download
memory/4620-0-0x00007FFBAC563000-0x00007FFBAC565000-memory.dmp

Filesize
8KB

Download
memory/4620-56-0x00007FFBAC560000-0x00007FFBAD021000-memory.dmp

Filesize
10.8MB

Download
memory/4620-57-0x00007FFBAC563000-0x00007FFBAC565000-memory.dmp

Filesize
8KB

Download
memory/4620-58-0x00007FFBAC560000-0x00007FFBAD021000-memory.dmp

Filesize
10.8MB

Download
memory/4620-1-0x0000000000260000-0x0000000000278000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads