Analysis
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max time kernel
156s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
14-07-2022 02:21
Static task
static1
Behavioral task
behavioral1
Sample
48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe
Resource
win10v2004-20220414-en
General
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Target
48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe
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Size
1.2MB
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MD5
62fd68d0b6c7b628fc1688a74f5a812e
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SHA1
0b20f1242605bd33de07c10cb950daa35502c2ef
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SHA256
48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69
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SHA512
6debd7cd91fd9666e4ed6129f011586d1b9f0500afc95f683cff472e31a334cd9080d4b5c2a8058cbd3b32ceb40fb5c42510e3c13524fc9d586ca9ca1b805291
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" filedill.exe -
NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/1224-138-0x0000000001330000-0x00000000013B4000-memory.dmp MailPassView behavioral2/memory/3392-141-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/3392-142-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/3392-144-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/3392-145-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 6 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/1224-138-0x0000000001330000-0x00000000013B4000-memory.dmp WebBrowserPassView behavioral2/memory/4088-146-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/4088-147-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4088-149-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4088-150-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4088-152-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 10 IoCs
resource yara_rule behavioral2/memory/1224-138-0x0000000001330000-0x00000000013B4000-memory.dmp Nirsoft behavioral2/memory/3392-141-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/3392-142-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3392-144-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3392-145-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4088-146-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/4088-147-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4088-149-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4088-150-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4088-152-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
pid Process 2028 filedill.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-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation 48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 6 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce filedill.exe Set value (str) \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\5f91zhv917s = "C:\\Users\\Admin\\5f91zhv917s\\27314.vbs" filedill.exe Key deleted \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN filedill.exe Key created \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run filedill.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN filedill.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run filedill.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA filedill.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 41 whatismyipaddress.com 43 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2028 set thread context of 1224 2028 filedill.exe 83 PID 1224 set thread context of 3392 1224 RegSvcs.exe 92 PID 1224 set thread context of 4088 1224 RegSvcs.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe 2028 filedill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1224 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1224 RegSvcs.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4948 wrote to memory of 2028 4948 48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe 79 PID 4948 wrote to memory of 2028 4948 48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe 79 PID 4948 wrote to memory of 2028 4948 48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe 79 PID 2028 wrote to memory of 1224 2028 filedill.exe 83 PID 2028 wrote to memory of 1224 2028 filedill.exe 83 PID 2028 wrote to memory of 1224 2028 filedill.exe 83 PID 2028 wrote to memory of 1224 2028 filedill.exe 83 PID 2028 wrote to memory of 1224 2028 filedill.exe 83 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 3392 1224 RegSvcs.exe 92 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93 PID 1224 wrote to memory of 4088 1224 RegSvcs.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe"C:\Users\Admin\AppData\Local\Temp\48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Users\Admin\5f91zhv917s\filedill.exe"C:\Users\Admin\5f91zhv917s\filedill.exe" sGWSpzZJk.EPB2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"4⤵
- Accesses Microsoft Outlook accounts
PID:3392
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"4⤵PID:4088
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
507KB
MD5605b7402eb5f40b452daab94f834439a
SHA17f8cb93eb30a58a98eac4b7b45e1d950c68c85a0
SHA25640536530c2cede3feb47eb50ebbb5fca2a7073e360f64061272cf63d067adefb
SHA512838a92b8d8f171de6a5da5f14d7b0e6091595a6d2396c3aaea8dc6b9e45258f1c00e3922720a32aa08d32bae7cf8b3d1cf614ca87d49162b478fc9fb535fb854
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Filesize
172B
MD56d2b5961513fbfead0812748aeb09381
SHA1f69f91921b16fc69db804eab06d6a17fb53cbcac
SHA2568eeae059933dbd5dc9d29b8f0d3a61899e7a2ba7a18cb6e705704d7c44712494
SHA51259fc96a7f399f2cc8ed0eb6183e7c587baa27964fcda62bb4697db80b6ab29f1552d4409fe72d49547f157b4d91bf10449de72e72ba43f133be644062aad61d0
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Filesize
915KB
MD5e01ced5c12390ff5256694eda890b33a
SHA10bb74a9d3154d1269e5e456aa41e94b60f753f78
SHA25666c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba
SHA51293a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d
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Filesize
915KB
MD5e01ced5c12390ff5256694eda890b33a
SHA10bb74a9d3154d1269e5e456aa41e94b60f753f78
SHA25666c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba
SHA51293a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d
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Filesize
28.8MB
MD54af295d2ccc2981b3093333cde1b8131
SHA1c88e42edf0c1534212a339c49b897d0851cd9a03
SHA256e5760e240f0cfec622d45e0b3e2d7301c22fefe702a3ef74b1e50ef9cf13dfdd
SHA512f65818f0bf8df87901b5b0ddcc2d32326fbeef80c956cec85e2967782cbe7ca98873d4047c9f699de28505bfdaf0b330a432788259f73b38d036a92a2f88de25
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196