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Analysis
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max time kernel
138s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
06/05/2024, 22:18
Behavioral task
behavioral1
Sample
LastActivityView.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
LastActivityView.exe
Resource
win10v2004-20240419-en
General
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Target
LastActivityView.exe
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Size
89KB
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MD5
499e35df562563babfff6a1d2ee71743
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SHA1
7bece5115d9df1fa43b6a7a69f9574a498388960
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SHA256
6ebd5512d5cede4fdf769c35a48727c5fd5acb8ac40ae4c5ea7e9ca37fc8747b
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SHA512
2df1934de1f45661ab929a7f7658478f5a3d8cacfbe682f1f6b8bee8a49ab2720141a1c0ea74608e14002ff5132cb0932c7fb5b3790575b5e23c5327adfdf377
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SSDEEP
1536:XQol2xVvTS+KaYKvHUxErb2PPSUF2Q06yG2OklzG2OrSBR27KmhDWP:XQvVqaZsqrbeafQUmklzG2OrUyKdP
Malware Config
Extracted
xworm
https://pastebin.com/raw/R8gFU5SX:123456789
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Install_directory
%ProgramData%
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install_file
{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe
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pastebin_url
https://pastebin.com/raw/R8gFU5SX
Signatures
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Detect Xworm Payload 2 IoCs
resource yara_rule behavioral2/memory/800-0-0x0000000000220000-0x000000000023C000-memory.dmp family_xworm behavioral2/files/0x0024000000023501-57.dat 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.
pid Process 116 powershell.exe 436 powershell.exe 3648 powershell.exe 1132 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation LastActivityView.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.lnk LastActivityView.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.lnk LastActivityView.exe -
Executes dropped EXE 3 IoCs
pid Process 1716 {6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe 4580 {6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe 1476 {6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052 = "C:\\ProgramData\\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe" LastActivityView.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
flow ioc 29 pastebin.com 30 pastebin.com 38 2.tcp.eu.ngrok.io -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 26 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4312 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 800 LastActivityView.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 116 powershell.exe 116 powershell.exe 436 powershell.exe 436 powershell.exe 3648 powershell.exe 3648 powershell.exe 1132 powershell.exe 1132 powershell.exe 800 LastActivityView.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 800 LastActivityView.exe Token: SeDebugPrivilege 116 powershell.exe Token: SeDebugPrivilege 436 powershell.exe Token: SeDebugPrivilege 3648 powershell.exe Token: SeDebugPrivilege 1132 powershell.exe Token: SeDebugPrivilege 800 LastActivityView.exe Token: SeDebugPrivilege 1716 {6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe Token: SeDebugPrivilege 4580 {6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe Token: SeDebugPrivilege 1476 {6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 800 LastActivityView.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 800 wrote to memory of 116 800 LastActivityView.exe 93 PID 800 wrote to memory of 116 800 LastActivityView.exe 93 PID 800 wrote to memory of 436 800 LastActivityView.exe 96 PID 800 wrote to memory of 436 800 LastActivityView.exe 96 PID 800 wrote to memory of 3648 800 LastActivityView.exe 98 PID 800 wrote to memory of 3648 800 LastActivityView.exe 98 PID 800 wrote to memory of 1132 800 LastActivityView.exe 100 PID 800 wrote to memory of 1132 800 LastActivityView.exe 100 PID 800 wrote to memory of 4312 800 LastActivityView.exe 102 PID 800 wrote to memory of 4312 800 LastActivityView.exe 102 -
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.
Processes
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C:\Users\Admin\AppData\Local\Temp\LastActivityView.exe"C:\Users\Admin\AppData\Local\Temp\LastActivityView.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:800 -
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\LastActivityView.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:116
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LastActivityView.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:436
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3648
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1132
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052" /tr "C:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe"2⤵
- Creates scheduled task(s)
PID:4312
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C:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exeC:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1716
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C:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exeC:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4580
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C:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exeC:\ProgramData\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1476
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
89KB
MD5499e35df562563babfff6a1d2ee71743
SHA17bece5115d9df1fa43b6a7a69f9574a498388960
SHA2566ebd5512d5cede4fdf769c35a48727c5fd5acb8ac40ae4c5ea7e9ca37fc8747b
SHA5122df1934de1f45661ab929a7f7658478f5a3d8cacfbe682f1f6b8bee8a49ab2720141a1c0ea74608e14002ff5132cb0932c7fb5b3790575b5e23c5327adfdf377
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0520000052000052.exe.log
Filesize654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
944B
MD577d622bb1a5b250869a3238b9bc1402b
SHA1d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
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Filesize
944B
MD5e60eb305a7b2d9907488068b7065abd3
SHA11643dd7f915ac50c75bc01c53d68c5dafb9ce28d
SHA256ad07460e061642c0dd4e7dfa7b821aacce873e290389e72f708e9f3504f9d135
SHA51295c45afec6fa4e0b2a21edd10a6b2dc30568810c67bc9bc34d98ab111c48261f377a370583adb27e08616b0108026c119493b1b093b52ce931117e646b46cb7b
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Filesize
944B
MD5ba169f4dcbbf147fe78ef0061a95e83b
SHA192a571a6eef49fff666e0f62a3545bcd1cdcda67
SHA2565ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1
SHA5128d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82