xworm | 23bd40410d0296e31261f08dcb871ccd8965bd7b610d7d1a5d3c9aaf88048b6c

General

Target

3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
Size

114KB
MD5

62ed3d4b4bcced663a7cba48715843a9
SHA1

edb117c9a77f0b9f55491ec23f08a55a3340341f
SHA256

23bd40410d0296e31261f08dcb871ccd8965bd7b610d7d1a5d3c9aaf88048b6c
SHA512

eca0fe59599aa90af0963eeaa475bbebd09edc0e9befa6ff8546ee1b806a1f4e7d4a8386fbefdb016f4df33d3ff5b58de4d2338ada8737ec45c50db9725de883
SSDEEP

1536:JjYYfOtuaA3+pfbrp+ZY9QQK676lJOqVChiH0hLP+VVVVVVVVVVVVVVVVVVVVVVp:B0uaA3+pfbrpfOZfOqVbH0hLN0B

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:10967

22.ip.gl.ply.gg:10967

Attributes

Install_directory
%Userprofile%
install_file
dllhso.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2128-1-0x00000000012C0000-0x00000000012E2000-memory.dmp	family_xworm
behavioral1/files/0x0009000000012118-32.dat	family_xworm
behavioral1/memory/604-34-0x0000000001090000-0x00000000010B2000-memory.dmp	family_xworm
behavioral1/memory/2028-36-0x0000000000160000-0x0000000000182000-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
2988	powershell.exe
2932	powershell.exe
2904	powershell.exe
2544	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
604	dllhso.exe
2028	dllhso.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
2624	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2544	powershell.exe
2988	powershell.exe
2932	powershell.exe
2904	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
Token: SeDebugPrivilege	2544	powershell.exe
Token: SeDebugPrivilege	2988	powershell.exe
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	2904	powershell.exe
Token: SeDebugPrivilege	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
Token: SeDebugPrivilege	604	dllhso.exe
Token: SeDebugPrivilege	2028	dllhso.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2544	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	30
PID 2128 wrote to memory of 2544	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	30
PID 2128 wrote to memory of 2544	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	30
PID 2128 wrote to memory of 2988	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	32
PID 2128 wrote to memory of 2988	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	32
PID 2128 wrote to memory of 2988	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	32
PID 2128 wrote to memory of 2932	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	34
PID 2128 wrote to memory of 2932	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	34
PID 2128 wrote to memory of 2932	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	34
PID 2128 wrote to memory of 2904	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	36
PID 2128 wrote to memory of 2904	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	36
PID 2128 wrote to memory of 2904	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	36
PID 2128 wrote to memory of 2624	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	38
PID 2128 wrote to memory of 2624	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	38
PID 2128 wrote to memory of 2624	2128	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	38
PID 2788 wrote to memory of 604	2788	taskeng.exe	42
PID 2788 wrote to memory of 604	2788	taskeng.exe	42
PID 2788 wrote to memory of 604	2788	taskeng.exe	42
PID 2788 wrote to memory of 2028	2788	taskeng.exe	43
PID 2788 wrote to memory of 2028	2788	taskeng.exe	43
PID 2788 wrote to memory of 2028	2788	taskeng.exe	43

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\3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
"C:\Users\Admin\AppData\Local\Temp\3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2128
- 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\3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2544
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2988
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\dllhso.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2932
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'dllhso.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2904
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "dllhso" /tr "C:\Users\Admin\dllhso.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2624

C:\Windows\system32\taskeng.exe
taskeng.exe {2827D23E-8C0E-4081-82A3-4499D2E08B4D} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Users\Admin\dllhso.exe
  C:\Users\Admin\dllhso.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:604
- C:\Users\Admin\dllhso.exe
  C:\Users\Admin\dllhso.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2028

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
a6a97dfa610b821a3695bda1da5d75fb

SHA1
a698017b576482193870abf76bfb31878ed67ae4

SHA256
47e698685a55cf08ed1f0714081ba8aa5fd6a9fa49fa0dcb394b9e1992fd070d

SHA512
a739726baf934628229e18ce4bd73b03c27649e2579ca8bd815751581b53ada18e9da363d9ce7188ee2cdd061c4805f13ea641517c6281297e950161cba682cc

Download Submit
C:\Users\Admin\dllhso.exe

Filesize
114KB

MD5
62ed3d4b4bcced663a7cba48715843a9

SHA1
edb117c9a77f0b9f55491ec23f08a55a3340341f

SHA256
23bd40410d0296e31261f08dcb871ccd8965bd7b610d7d1a5d3c9aaf88048b6c

SHA512
eca0fe59599aa90af0963eeaa475bbebd09edc0e9befa6ff8546ee1b806a1f4e7d4a8386fbefdb016f4df33d3ff5b58de4d2338ada8737ec45c50db9725de883

Download Submit
memory/604-34-0x0000000001090000-0x00000000010B2000-memory.dmp

Filesize
136KB

Download
memory/2028-36-0x0000000000160000-0x0000000000182000-memory.dmp

Filesize
136KB

Download
memory/2128-29-0x000007FEF4FD3000-0x000007FEF4FD4000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x00000000012C0000-0x00000000012E2000-memory.dmp

Filesize
136KB

Download
memory/2128-0-0x000007FEF4FD3000-0x000007FEF4FD4000-memory.dmp

Filesize
4KB

Download
memory/2128-30-0x000000001B1A0000-0x000000001B220000-memory.dmp

Filesize
512KB

Download
memory/2128-28-0x000000001B1A0000-0x000000001B220000-memory.dmp

Filesize
512KB

Download
memory/2544-7-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2544-8-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2544-6-0x0000000002780000-0x0000000002800000-memory.dmp

Filesize
512KB

Download
memory/2988-15-0x0000000001EC0000-0x0000000001EC8000-memory.dmp

Filesize
32KB

Download
memory/2988-14-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads