2c989418ee6df1ae08f2332ca25edc3c7ace2aa9f8ef710b80857c500b4f4c01

Analysis

max time kernel
135s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
21/11/2022, 15:24

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General

Target
file.exe
Size 750KB
Sample221121-ss2flafc98
SHA256 2c989418ee6df1ae08f2332ca25edc3c7ace2aa9f8ef710b80857c500b4f4c01
MD5 6623e8ceaa837f9fa046d11bacfc23c4
SHA1 8e5b640e57aab857cdee32cf3c17d11e20320767
SHA512 cdd6f615ded676d2c5f48598111a3018b46ffbb7c2003abf623b4724b2df1028f89e4a427ccfc0762940ab396db96970b68f8925e6fb0db0022d74500766b9ec
SSDEEP 12288:7WClKxoQfqpb43TCggjQr1FnEivxWPb8MuoEFQgjXOuEXPsXdzJpPgCKwZzRGzOQ:aClKPfqpb4jPEi5A8MuoE7XvXdzfPgCe
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

collection discovery spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
31	4628	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4628	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3420 set thread context of 4128	3420	file.exe	79

Program crash 2 IoCs

pid	pid_target	Process	procid_target
532	3420	WerFault.exe	77
1664	4628	WerFault.exe	84

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4628	rundll32.exe
4628	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 4128	3420	file.exe	79
PID 3420 wrote to memory of 4128	3420	file.exe	79
PID 3420 wrote to memory of 4128	3420	file.exe	79
PID 3420 wrote to memory of 4128	3420	file.exe	79
PID 3420 wrote to memory of 4128	3420	file.exe	79
PID 4128 wrote to memory of 4628	4128	vbc.exe	84
PID 4128 wrote to memory of 4628	4128	vbc.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4128
- - C:\Windows\system32\rundll32.exe
    "C:\Users\Admin\AppData\Roaming\nsis_unse56fdae.dll",PrintUIEntry |5CQkOhiAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBWYXAGm|AEUAVwBGHwBH+wB2NwBUAEEAc|sAVS0CWUiD7Cj|6AQCAABIg8T|KMPMzMxMiUT|JBhIiVQkEEjviUwkCFkBSItEvyQwSIkEJH0BOP1IawAISMdEJBD2LQHrDn0BEEiDwHUBiwEQfQFASDmSAPtzJZsDiwwkSAN|yEiLwUiLTKcB|VR3AAPRSIvKit8JiAjrwWIFZUjviwQlYPPwM8lI|4tQGEg70XQ2|0iDwiBIiwJI|zvCdCpmg3hI|xh1GkyLQFBmv0GDOGt0Bw0RS|t1CA0QeBAudAX|SIsA69VIi0j6+QDBZgBAU1VWV|9BVEFVQVZBV|5ZAWaBOU1aTYv|+EyL8kiL2Q|7hfzz8ExjSTxB|4E8CVBFAAAP+4Xq8|BBi4QJiP7z8IXASI08AQ97hNZmEYO8CYwtAfcPhMfz8ESLZyD|RItfHIt3JET|i08YTAPhTAP|2UgD8TPJRYXvyQ+EpPPwTYvE|0GLEEUz0kgD|9OKAoTAdB1Bv8HKDQ++wPYAAfdEA9C7EXXsQYH|+qr8DXx0DoP|wQFJg8AEQTv|yXNp68aLwQ||twxORYssi0y|A+t0WDPtphB071FBixS9ANMzyf+KAkyLwusPwe3JxBEDyOEQAUGK|QDREO0zwDP2Qec7DLbcEKIAg8YB|4P4CHLu6wpI|4vLQf|VSYkE9|eDxeAQxAQ7b|cYcq9iAUFfQV7|QV1BXF9eXVu+LxdIgexgAWAAi||p6Gb+||9IhW|AD4SZcSBMjasBfYsnEMgz|+ibeSD|jV8ETI1FQjN|0ovL|1QkaHwgv0yL4A+EbHEgRd6kEDPAi9ONIEiJ13wkIKIgcHwgSIvP8A+ETHEgoiBQSP+NVghEjUdASPeNjCSBEUiL2Oi7fP16II1WSNogENreIczz8Ohn6yBEi08GjVcIPSCiIFjGIa+JhCSAgxLd8|CLPQ7WIFiJjCRtEQMw9o0g6DHrIEyLXTq7i6wpMkiLnBYyTP+JZCQ4RI1nbO9JO+xIhiAwTIndXIABhCTcgxGGjvTjId8g8KwTSIvT6Nvn|AEwipxzMkiN|YRzMkGA8yFJi+|MRDAYoAKD6QHvdfOBvHMyIVJlf3h1SouEJPQeMfeUJPjz8APCSDv|6HI1QTvUdjD|RI1JQEkr1EHTuACUAKIgQMYi+HTzF0S0ML4xSI1TbL6NIE0rxOhsgDBI+4vOoiB4SIX|dPMUTIwwFzFIjUwk90C6A|Pw|9dIgRnEcCFdJAAA
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - outlook_office_path
    - outlook_win_path
    PID:4628
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 4628 -s 524
      4⤵
      Program crash
      PID:1664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3420 -s 240
  2⤵
  - Program crash
  PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3420 -ip 3420
1⤵
PID:3456

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 4628 -ip 4628
1⤵
PID:2212

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

nsis_unse56fdae.dll

Path C:\Users\Admin\AppData\Roaming\nsis_unse56fdae.dll
Size 58KB
SHA256 92a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488
MD5 664e46926466a2d4c9b87540f4853c39
SHA1 b172d1c2bde331770b0a944fcf6a9e2d75ded66b
SHA512 1490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03
SSDEEP 768:aEyyCgsO1b32pU6Lwt3MVZwvze59kzs51oP6nVbKXYuhCCsycF9Lh0:agj1b2PMFE5ys51oPaVbK5G9Lh0
MD5 SHA1 SHA512 SSDEEP

Submit Download

nsis_unse56fdae.dll

Path C:\Users\Admin\AppData\Roaming\nsis_unse56fdae.dll
Size 58KB
SHA256 92a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488
MD5 664e46926466a2d4c9b87540f4853c39
SHA1 b172d1c2bde331770b0a944fcf6a9e2d75ded66b
SHA512 1490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03
SSDEEP 768:aEyyCgsO1b32pU6Lwt3MVZwvze59kzs51oP6nVbKXYuhCCsycF9Lh0:agj1b2PMFE5ys51oPaVbK5G9Lh0
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4128-148-0x0000000001910000-0x000000000192D000-memory.dmp

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memory/4128-133-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/4128-139-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/4128-140-0x0000000001423000-0x0000000001426000-memory.dmp

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memory/4128-141-0x0000000001424000-0x0000000001426000-memory.dmp

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memory/4128-142-0x0000000001910000-0x000000000192D000-memory.dmp

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memory/4628-147-0x00007FF494540000-0x00007FF49463A000-memory.dmp

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memory/4628-146-0x0000028541E40000-0x0000028541E47000-memory.dmp

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memory/4628-149-0x00007FF494540000-0x00007FF49463A000-memory.dmp

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memory/4628-150-0x00007FF494540000-0x00007FF49463A000-memory.dmp

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memory/4628-151-0x0000000010000000-0x0000000010013000-memory.dmp

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