xworm | bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

General

Target

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Size

619KB
MD5

458f7cbc40f24ca3257cb3803f1a817c
SHA1

419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877
SHA256

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2
SHA512

4f4da09b4a42440b0bb8e0e17b313c2b9450456f8ef4469e6f060554ee70fe6f7cef8de30dd72147702e1ec76190276c9d162a2c1492918f600142575f83cff9
SSDEEP

12288:6WET/mr9K+22BEEzFatnd/WeHK4KMSMOV4Tu4Cbpb3W/KuBvnqMUpeNW/:6Wtb3BE/Zq4KJLGT/6bG

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

baldur1.duckdns.org:3360

Mutex

99lkUMNvqj7gQA4z

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4916-23-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

1088 powershell.exe
2260 powershell.exe

pid	process
1088	powershell.exe
2260	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

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Drops startup file 2 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.lnk	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.lnk	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2 = "C:\\Users\\Admin\\AppData\\Roaming\\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	pid	process	target process
PID 4676 set thread context of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.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

Processes:

schtasks.exe

pid process

4040 schtasks.exe

pid	process
4040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exepowershell.exepowershell.exebb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid	process
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1088	powershell.exe
4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
2260	powershell.exe
1088	powershell.exe
2260	powershell.exe
4916	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exepowershell.exepowershell.exebb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	pid	process
Token: SeDebugPrivilege	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Token: SeDebugPrivilege	1088	powershell.exe
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	4916	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid process

4916 bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid	process
4916	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	pid	process	target process
PID 4676 wrote to memory of 1088	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 4676 wrote to memory of 1088	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 4676 wrote to memory of 1088	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 4676 wrote to memory of 2260	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 4676 wrote to memory of 2260	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 4676 wrote to memory of 2260	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 4676 wrote to memory of 4040	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 4676 wrote to memory of 4040	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 4676 wrote to memory of 4040	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 4676 wrote to memory of 656	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 656	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 656	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 4676 wrote to memory of 4916	4676	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
"C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4676

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1088

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AkyTYQmExJ.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2260

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AkyTYQmExJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp88A8.tmp"
2⤵
- Creates scheduled task(s)
PID:4040

C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
"C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
2⤵
PID:656

C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
"C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4916

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bbunixuc.uv3.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp88A8.tmp
Filesize
1KB

MD5
a3b16ed26c6da25ae70b349b67c611f5

SHA1
280e7886b8ef59f1601a856f0aa8e76c988b1522

SHA256
edfaf01f5dd785f94b3a27ba57d5679e629a3be20820e4d2e260c0e4f77dc71e

SHA512
2cc57c2e0e3e72c54dd2838533f1a2b16236a48fc2e065bca483d73dfd1d3c2ecf2076b0c947a106272f1ef19b059ad9574cc6035cd8683fd2c257b9f655d776

Download Submit
C:\Users\Admin\AppData\Roaming\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Filesize
619KB

MD5
458f7cbc40f24ca3257cb3803f1a817c

SHA1
419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877

SHA256
bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

SHA512
4f4da09b4a42440b0bb8e0e17b313c2b9450456f8ef4469e6f060554ee70fe6f7cef8de30dd72147702e1ec76190276c9d162a2c1492918f600142575f83cff9

Download Submit
memory/1088-17-0x0000000004BE0000-0x0000000005208000-memory.dmp

Filesize
6.2MB

Download
memory/1088-26-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/1088-74-0x0000000006CE0000-0x0000000006D83000-memory.dmp

Filesize
652KB

Download
memory/1088-25-0x0000000005400000-0x0000000005466000-memory.dmp

Filesize
408KB

Download
memory/1088-89-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/1088-83-0x0000000007130000-0x0000000007138000-memory.dmp

Filesize
32KB

Download
memory/1088-82-0x0000000007150000-0x000000000716A000-memory.dmp

Filesize
104KB

Download
memory/1088-15-0x0000000004570000-0x00000000045A6000-memory.dmp

Filesize
216KB

Download
memory/1088-81-0x0000000007050000-0x0000000007064000-memory.dmp

Filesize
80KB

Download
memory/1088-80-0x0000000007040000-0x000000000704E000-memory.dmp

Filesize
56KB

Download
memory/1088-59-0x0000000072480000-0x00000000724CC000-memory.dmp

Filesize
304KB

Download
memory/1088-78-0x0000000007090000-0x0000000007126000-memory.dmp

Filesize
600KB

Download
memory/1088-24-0x0000000004B20000-0x0000000004B42000-memory.dmp

Filesize
136KB

Download
memory/1088-21-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/1088-51-0x0000000005BB0000-0x0000000005BFC000-memory.dmp

Filesize
304KB

Download
memory/1088-70-0x00000000060A0000-0x00000000060BE000-memory.dmp

Filesize
120KB

Download
memory/1088-29-0x00000000054E0000-0x0000000005834000-memory.dmp

Filesize
3.3MB

Download
memory/1088-41-0x0000000005AF0000-0x0000000005B0E000-memory.dmp

Filesize
120KB

Download
memory/1088-19-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/1088-18-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2260-28-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2260-75-0x00000000077C0000-0x0000000007E3A000-memory.dmp

Filesize
6.5MB

Download
memory/2260-30-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2260-22-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2260-76-0x0000000007170000-0x000000000718A000-memory.dmp

Filesize
104KB

Download
memory/2260-77-0x00000000071F0000-0x00000000071FA000-memory.dmp

Filesize
40KB

Download
memory/2260-52-0x0000000006FE0000-0x0000000007012000-memory.dmp

Filesize
200KB

Download
memory/2260-53-0x0000000072480000-0x00000000724CC000-memory.dmp

Filesize
304KB

Download
memory/2260-79-0x0000000007370000-0x0000000007381000-memory.dmp

Filesize
68KB

Download
memory/2260-88-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4676-4-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4676-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/4676-31-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4676-1-0x00000000004E0000-0x0000000000582000-memory.dmp

Filesize
648KB

Download
memory/4676-5-0x0000000004A10000-0x0000000004A1A000-memory.dmp

Filesize
40KB

Download
memory/4676-3-0x0000000007450000-0x00000000074E2000-memory.dmp

Filesize
584KB

Download
memory/4676-16-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/4676-7-0x0000000007810000-0x000000000781C000-memory.dmp

Filesize
48KB

Download
memory/4676-10-0x00000000050F0000-0x000000000518C000-memory.dmp

Filesize
624KB

Download
memory/4676-9-0x0000000004FF0000-0x0000000005040000-memory.dmp

Filesize
320KB

Download
memory/4676-2-0x0000000007920000-0x0000000007EC4000-memory.dmp

Filesize
5.6MB

Download
memory/4676-8-0x0000000005FF0000-0x0000000006000000-memory.dmp

Filesize
64KB

Download
memory/4676-6-0x00000000077F0000-0x0000000007812000-memory.dmp

Filesize
136KB

Download
memory/4916-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads