xworm | e30eb0a1fd5f83a514006f54ab7f25dc46c0eee126b04e3518eb2e46f988939e

General

Target

BloxstrapModded.exe
Size

5.0MB
MD5

e7b2a449870a9783f05dfb0e5875d698
SHA1

84224b8024bb12aba1454110e08af2305693f84b
SHA256

e30eb0a1fd5f83a514006f54ab7f25dc46c0eee126b04e3518eb2e46f988939e
SHA512

daabf76af5309a142b04513af0e409e4bdaf8e86d0abaee45996632b7a6300f5d3d4d74dc750f72af9281618767505580bf26bd81ea0624021da9fffd8c4a8f3
SSDEEP

1536:pmtSNh5dMtrBDrqiYQ92Zxlc9lQPykpleqqy:w8NhviV/qcwc9+aQeo

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

C2

million-houston.gl.at.ply.gg:27705

Attributes

Install_directory
%AppData%
install_file
BloxstrapModded.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\XClient.exe	family_xworm
behavioral2/memory/944-16-0x0000000000D80000-0x0000000000D9A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

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

Processes:

BloxstrapModded.exeXClient.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	BloxstrapModded.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

Processes:

XClient.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BloxstrapModded.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BloxstrapModded.lnk	XClient.exe

Executes dropped EXE 1 IoCs

Processes:

XClient.exe

pid process

944 XClient.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.

Processes:

flow ioc

34 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
944	XClient.exe

flow	ioc
34	ip-api.com

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXClient.exe

pid	process
1052	powershell.exe
1052	powershell.exe
3532	powershell.exe
3532	powershell.exe
1332	powershell.exe
1332	powershell.exe
372	powershell.exe
372	powershell.exe
944	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

XClient.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	944	XClient.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	3532	powershell.exe
Token: SeDebugPrivilege	1332	powershell.exe
Token: SeDebugPrivilege	372	powershell.exe
Token: SeDebugPrivilege	944	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XClient.exe

pid process

944 XClient.exe

pid	process
944	XClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

BloxstrapModded.exeXClient.exe

description	pid	process	target process
PID 4904 wrote to memory of 944	4904	BloxstrapModded.exe	XClient.exe
PID 4904 wrote to memory of 944	4904	BloxstrapModded.exe	XClient.exe
PID 944 wrote to memory of 1052	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 1052	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 3532	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 3532	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 1332	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 1332	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 372	944	XClient.exe	powershell.exe
PID 944 wrote to memory of 372	944	XClient.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\BloxstrapModded.exe
"C:\Users\Admin\AppData\Local\Temp\BloxstrapModded.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\XClient.exe
  "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:944
- - 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\XClient.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1052
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3532
- - 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\BloxstrapModded.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1332
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'BloxstrapModded.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

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\XClient.exe

Filesize
80KB

MD5
cfeb71480542c9b6d6aec88f02e6d820

SHA1
4fcf90f5f8e16dcee2fa5ee1611394533f7ff740

SHA256
ebabe3ead25f28d4fe0a3ab1a592d7160065995da465ec549ebe8f27ba5eeee9

SHA512
e5d1a95fe948e295f0f7cc55f88464136e088b0c7f531a132eab76025885f2de93d101981fc3dedc4bd7ed271b58578bcab235fc9d2bedca6e209fb3f7d594bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q5u5tzth.k2j.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/372-79-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/372-76-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/944-20-0x000000001BA30000-0x000000001BA40000-memory.dmp

Filesize
64KB

Download
memory/944-85-0x000000001BA30000-0x000000001BA40000-memory.dmp

Filesize
64KB

Download
memory/944-84-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/944-16-0x0000000000D80000-0x0000000000D9A000-memory.dmp

Filesize
104KB

Download
memory/944-17-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/1052-30-0x0000021ADD770000-0x0000021ADD792000-memory.dmp

Filesize
136KB

Download
memory/1052-32-0x0000021ADD7B0000-0x0000021ADD7C0000-memory.dmp

Filesize
64KB

Download
memory/1052-33-0x0000021ADD7B0000-0x0000021ADD7C0000-memory.dmp

Filesize
64KB

Download
memory/1052-36-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/1052-31-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/1332-54-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/1332-66-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/3532-51-0x000001FEC6240000-0x000001FEC6250000-memory.dmp

Filesize
64KB

Download
memory/3532-53-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/3532-40-0x000001FEC6240000-0x000001FEC6250000-memory.dmp

Filesize
64KB

Download
memory/3532-39-0x000001FEC6240000-0x000001FEC6250000-memory.dmp

Filesize
64KB

Download
memory/3532-38-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/4904-19-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/4904-3-0x000000001B1D0000-0x000000001B1E0000-memory.dmp

Filesize
64KB

Download
memory/4904-1-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

Filesize
10.8MB

Download
memory/4904-0-0x0000000000480000-0x0000000000494000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads