xworm | e1ea405efb08d4a7d254423fc5b700021eb653b1545d120c0f6cf4ff31c7f0ae

Analysis

max time kernel
1178s
max time network
1187s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 07:45

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General

Target
a ton of ya/ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
Size 63KB
Sample240601-jlvj2aed5s
SHA256 ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d
MD5 222c2d239f4c8a1d73c736c9cc712807
SHA1 c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c
SHA512 1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02
SSDEEP 1536:tJc/5q1qoR5PDdAZcIED4VuCkbFybjQ9f0jQRmONww+W:7c/iqoJekbFEQ9W+mONP+W
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:23638
209.25.140.1:5525:23638
bring-recorder.gl.at.ply.gg:23638
action-yesterday.gl.at.ply.gg:23638
147.185.221.19:23638
then-wheel.gl.at.ply.gg::23638
then-wheel.gl.at.ply.gg:23638
teen-modes.gl.at.ply.gg:23638

Attributes

Install_directory
%LocalAppData%
install_file
uwumonster.exe

Signatures

Detect Xworm Payload 13 IoCs

resource	yara_rule
behavioral7/memory/2088-1-0x0000000000B10000-0x0000000000B26000-memory.dmp	family_xworm
behavioral7/files/0x000a000000015cb1-11.dat	family_xworm
behavioral7/memory/2336-13-0x00000000000B0000-0x00000000000C6000-memory.dmp	family_xworm
behavioral7/memory/2108-15-0x0000000000CA0000-0x0000000000CB6000-memory.dmp	family_xworm
behavioral7/memory/2896-17-0x0000000001010000-0x0000000001026000-memory.dmp	family_xworm
behavioral7/memory/1676-21-0x0000000001060000-0x0000000001076000-memory.dmp	family_xworm
behavioral7/memory/1688-24-0x00000000012B0000-0x00000000012C6000-memory.dmp	family_xworm
behavioral7/memory/1988-26-0x00000000000E0000-0x00000000000F6000-memory.dmp	family_xworm
behavioral7/memory/1972-28-0x0000000000C10000-0x0000000000C26000-memory.dmp	family_xworm
behavioral7/memory/2128-31-0x0000000001330000-0x0000000001346000-memory.dmp	family_xworm
behavioral7/memory/1864-36-0x0000000000080000-0x0000000000096000-memory.dmp	family_xworm
behavioral7/memory/380-38-0x0000000000300000-0x0000000000316000-memory.dmp	family_xworm
behavioral7/memory/1200-40-0x0000000000E70000-0x0000000000E86000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

Executes dropped EXE 19 IoCs

pid	Process
2336	uwumonster.exe
2108	uwumonster.exe
2896	uwumonster.exe
1748	uwumonster.exe
2404	uwumonster.exe
1676	uwumonster.exe
952	uwumonster.exe
1688	uwumonster.exe
1988	uwumonster.exe
1972	uwumonster.exe
1528	uwumonster.exe
2128	uwumonster.exe
1232	uwumonster.exe
1940	uwumonster.exe
2668	uwumonster.exe
1864	uwumonster.exe
380	uwumonster.exe
1200	uwumonster.exe
1712	uwumonster.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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\uwumonster = "C:\\Users\\Admin\\AppData\\Local\\uwumonster.exe"	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2976	schtasks.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	2088	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
Token: SeDebugPrivilege	2088	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
Token: SeDebugPrivilege	2336	uwumonster.exe
Token: SeDebugPrivilege	2108	uwumonster.exe
Token: SeDebugPrivilege	2896	uwumonster.exe
Token: SeDebugPrivilege	1748	uwumonster.exe
Token: SeDebugPrivilege	2404	uwumonster.exe
Token: SeDebugPrivilege	1676	uwumonster.exe
Token: SeDebugPrivilege	952	uwumonster.exe
Token: SeDebugPrivilege	1688	uwumonster.exe
Token: SeDebugPrivilege	1988	uwumonster.exe
Token: SeDebugPrivilege	1972	uwumonster.exe
Token: SeDebugPrivilege	1528	uwumonster.exe
Token: SeDebugPrivilege	2128	uwumonster.exe
Token: SeDebugPrivilege	1232	uwumonster.exe
Token: SeDebugPrivilege	1940	uwumonster.exe
Token: SeDebugPrivilege	2668	uwumonster.exe
Token: SeDebugPrivilege	1864	uwumonster.exe
Token: SeDebugPrivilege	380	uwumonster.exe
Token: SeDebugPrivilege	1200	uwumonster.exe
Token: SeDebugPrivilege	1712	uwumonster.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2976	2088	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe	28
PID 2088 wrote to memory of 2976	2088	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe	28
PID 2088 wrote to memory of 2976	2088	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe	28
PID 1580 wrote to memory of 2336	1580	taskeng.exe	34
PID 1580 wrote to memory of 2336	1580	taskeng.exe	34
PID 1580 wrote to memory of 2336	1580	taskeng.exe	34
PID 1580 wrote to memory of 2108	1580	taskeng.exe	35
PID 1580 wrote to memory of 2108	1580	taskeng.exe	35
PID 1580 wrote to memory of 2108	1580	taskeng.exe	35
PID 1580 wrote to memory of 2896	1580	taskeng.exe	36
PID 1580 wrote to memory of 2896	1580	taskeng.exe	36
PID 1580 wrote to memory of 2896	1580	taskeng.exe	36
PID 1580 wrote to memory of 1748	1580	taskeng.exe	37
PID 1580 wrote to memory of 1748	1580	taskeng.exe	37
PID 1580 wrote to memory of 1748	1580	taskeng.exe	37
PID 1580 wrote to memory of 2404	1580	taskeng.exe	38
PID 1580 wrote to memory of 2404	1580	taskeng.exe	38
PID 1580 wrote to memory of 2404	1580	taskeng.exe	38
PID 1580 wrote to memory of 1676	1580	taskeng.exe	39
PID 1580 wrote to memory of 1676	1580	taskeng.exe	39
PID 1580 wrote to memory of 1676	1580	taskeng.exe	39
PID 1580 wrote to memory of 952	1580	taskeng.exe	40
PID 1580 wrote to memory of 952	1580	taskeng.exe	40
PID 1580 wrote to memory of 952	1580	taskeng.exe	40
PID 1580 wrote to memory of 1688	1580	taskeng.exe	41
PID 1580 wrote to memory of 1688	1580	taskeng.exe	41
PID 1580 wrote to memory of 1688	1580	taskeng.exe	41
PID 1580 wrote to memory of 1988	1580	taskeng.exe	42
PID 1580 wrote to memory of 1988	1580	taskeng.exe	42
PID 1580 wrote to memory of 1988	1580	taskeng.exe	42
PID 1580 wrote to memory of 1972	1580	taskeng.exe	43
PID 1580 wrote to memory of 1972	1580	taskeng.exe	43
PID 1580 wrote to memory of 1972	1580	taskeng.exe	43
PID 1580 wrote to memory of 1528	1580	taskeng.exe	45
PID 1580 wrote to memory of 1528	1580	taskeng.exe	45
PID 1580 wrote to memory of 1528	1580	taskeng.exe	45
PID 1580 wrote to memory of 2128	1580	taskeng.exe	46
PID 1580 wrote to memory of 2128	1580	taskeng.exe	46
PID 1580 wrote to memory of 2128	1580	taskeng.exe	46
PID 1580 wrote to memory of 1232	1580	taskeng.exe	47
PID 1580 wrote to memory of 1232	1580	taskeng.exe	47
PID 1580 wrote to memory of 1232	1580	taskeng.exe	47
PID 1580 wrote to memory of 1940	1580	taskeng.exe	48
PID 1580 wrote to memory of 1940	1580	taskeng.exe	48
PID 1580 wrote to memory of 1940	1580	taskeng.exe	48
PID 1580 wrote to memory of 2668	1580	taskeng.exe	49
PID 1580 wrote to memory of 2668	1580	taskeng.exe	49
PID 1580 wrote to memory of 2668	1580	taskeng.exe	49
PID 1580 wrote to memory of 1864	1580	taskeng.exe	50
PID 1580 wrote to memory of 1864	1580	taskeng.exe	50
PID 1580 wrote to memory of 1864	1580	taskeng.exe	50
PID 1580 wrote to memory of 380	1580	taskeng.exe	51
PID 1580 wrote to memory of 380	1580	taskeng.exe	51
PID 1580 wrote to memory of 380	1580	taskeng.exe	51
PID 1580 wrote to memory of 1200	1580	taskeng.exe	52
PID 1580 wrote to memory of 1200	1580	taskeng.exe	52
PID 1580 wrote to memory of 1200	1580	taskeng.exe	52
PID 1580 wrote to memory of 1712	1580	taskeng.exe	53
PID 1580 wrote to memory of 1712	1580	taskeng.exe	53
PID 1580 wrote to memory of 1712	1580	taskeng.exe	53

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\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
"C:\Users\Admin\AppData\Local\Temp\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "uwumonster" /tr "C:\Users\Admin\AppData\Local\uwumonster.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2976

C:\Windows\system32\taskeng.exe
taskeng.exe {D6F45FAF-4ADB-4DBE-B237-A2FD0387BAE2} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1580
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2336
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2108
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1748
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2404
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1676
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:952
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1688
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1988
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1972
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1528
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2128
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1232
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2668
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1864
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:380
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1200
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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uwumonster.exe

Path C:\Users\Admin\AppData\Local\uwumonster.exe
Size 63KB
SHA256 ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d
MD5 222c2d239f4c8a1d73c736c9cc712807
SHA1 c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c
SHA512 1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02
SSDEEP 1536:tJc/5q1qoR5PDdAZcIED4VuCkbFybjQ9f0jQRmONww+W:7c/iqoJekbFEQ9W+mONP+W
MD5 SHA1 SHA512 SSDEEP

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memory/380-38-0x0000000000300000-0x0000000000316000-memory.dmp

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memory/1200-40-0x0000000000E70000-0x0000000000E86000-memory.dmp

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memory/1676-21-0x0000000001060000-0x0000000001076000-memory.dmp

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memory/1688-24-0x00000000012B0000-0x00000000012C6000-memory.dmp

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memory/1864-36-0x0000000000080000-0x0000000000096000-memory.dmp

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memory/1972-28-0x0000000000C10000-0x0000000000C26000-memory.dmp

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memory/1988-26-0x00000000000E0000-0x00000000000F6000-memory.dmp

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memory/2088-8-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

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memory/2088-0-0x000007FEF5383000-0x000007FEF5384000-memory.dmp

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memory/2088-7-0x000007FEF5383000-0x000007FEF5384000-memory.dmp

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memory/2088-6-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

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memory/2088-1-0x0000000000B10000-0x0000000000B26000-memory.dmp

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memory/2108-15-0x0000000000CA0000-0x0000000000CB6000-memory.dmp

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memory/2128-31-0x0000000001330000-0x0000000001346000-memory.dmp

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memory/2336-13-0x00000000000B0000-0x00000000000C6000-memory.dmp

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memory/2896-17-0x0000000001010000-0x0000000001026000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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