Analysis
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max time kernel
151s -
max time network
161s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
09-12-2022 19:23
Behavioral task
behavioral1
Sample
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
Resource
win10v2004-20221111-en
General
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Target
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
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Size
751KB
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MD5
1fc7c230d6db0d7a0da6f415da271159
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SHA1
e0bd10d83bc7b3f1eb628974a8f690ffda6e9351
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SHA256
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81
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SHA512
96d64cba5bf650066e54bcb84f13aabd1992811963ae2dd3530431e86bbc3230d673545953d35767fbf85f61d86b44170d61200d1ffb4f4945268bfc3a7b1403
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SSDEEP
12288:Tc1dZibTD9uOroAgeHvCUt4RtlTc+YNKpQsNvVd1gF:Tcc/DwOrZgeHv54Rt6+YNkQsNmF
Malware Config
Signatures
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FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Control Panel\International\Geo\Nation 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe -
Modifies data under HKEY_USERS 6 IoCs
Processes:
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exedescription ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 33f9a386b5f8ffad3646d8833d8061929fe8064c314f19655f7dd7737c23b9bc0cbad6168ac7356ee7123bdf36f588d489428c5b380f99fb975935aafdfe470eb0f0db3a 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c10595327c0df184453b16b 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exepid Process 1040 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exepid Process 1040 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exedescription pid Process procid_target PID 1736 wrote to memory of 1040 1736 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe 29 PID 1736 wrote to memory of 1040 1736 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe 29 PID 1736 wrote to memory of 1040 1736 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe 29 PID 1736 wrote to memory of 1040 1736 7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"1⤵PID:2040
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C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe" -service -lunch1⤵
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"2⤵
- Checks computer location settings
- Modifies data under HKEY_USERS
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1040
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
22B
MD50cea6dd5907d2588f2684ab6e3b80e06
SHA1f89af42e5610933868f8657361118066b4207f47
SHA25608260dd3bad4aa3f1e4b725c1a512b279e78728f75c499fb460aa736fb975a30
SHA51291f85acac593a25f68d769e655bbda99b7f786c26ccd53ed6052915af29f5d5d1ad0967f96dfc717ec1242c352aa0e6d48cf321b484ccda3badb3a7048241f5d
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Filesize
68B
MD55defcdfff953b3d2165f35795b60af77
SHA133a786e38ca07cc9fe89507f86c83712710d09bd
SHA256b13f1298949601395eadfe3bda8efa8178bafac265ded0439ac825e1c9dbde60
SHA5126b9fed372873b2c8ae29f2230f1922c28498cdcba7e016f52152c71219e5d5a15b271df55f94302a7f5801fe20e2cd83fa941f417a6da6e223ba90821730bdff
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Filesize
271B
MD5714f2508d4227f74b6adacfef73815d8
SHA1a35c8a796e4453c0c09d011284b806d25bdad04c
SHA256a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480
SHA5121171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8