Analysis
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max time kernel
150s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
31-10-2023 14:04
Behavioral task
behavioral1
Sample
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
Resource
win10v2004-20231023-en
General
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Target
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
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Size
722KB
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MD5
45c9b54d66cbcc2de89f93e25f368a45
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SHA1
2e5265f35f75a50c89e592e127bc80e1e45aa840
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SHA256
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a
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SHA512
25c3f1ec6d2e233464090f584777b15f18acfd1cb12124c236680689545ec8208bc364d26d7202e38368dbec34cd824600afb51845df8c9de8c8e83fba8d8b1f
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SSDEEP
12288:x2QKNGp2YPjE0d63iVg5Bfi781Rt1hpGqzdpW9eKVQvTPRpsbS5hEgK:xSIp2Ydd6SVcpz1RtXpGadsbShK
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:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Control Panel\International\Geo\Nation 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Modifies data under HKEY_USERS 6 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c10595367ea224c4e53b26b 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 3434347f2127fe01889ddd17d6fe566033b02d84096b26520031824f491a117fc6f7ab3e453089924a14679bb6e02de8806f0b17d15a3750db14d26e7625cde5e782d89b 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exepid process 2828 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exepid process 2828 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exedescription pid process target process PID 2032 wrote to memory of 2828 2032 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe PID 2032 wrote to memory of 2828 2032 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe PID 2032 wrote to memory of 2828 2032 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe PID 2032 wrote to memory of 2828 2032 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"1⤵PID:884
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C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe" -service -lunch1⤵
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"2⤵
- Checks computer location settings
- Modifies data under HKEY_USERS
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2828
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
22B
MD55f54b4197bb18fe0694b3020e8692086
SHA1bd4136d020282ed014df0459316d387833055e8a
SHA25620fa1f12f3f991433db843907119e29aed432720cc31b0f83021014dbe8a7710
SHA5120a7325900ae68608fb2086c9b52c63a6fa186f3bd8b8dc06aee6b4253f15d5e337f9d0eedf77fe590b33170a9a7219d852cf6bd8dc624c8513dfff6f2cdfe980
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Filesize
68B
MD5502c7f9432aeb91beeea3de82bf0feb7
SHA18457b9cdbd086cdf4aca6ecc637d12935bd77ab7
SHA2568202bba9da6a169d206806d91f30020f4039646f5a6d7b8a1312e3f26d594561
SHA5124112f9b5f403500b718c9bbf8bef823a807f17e71e9d903103274504ed6da5adcaf4032b6bf33d6cd32361bd738f80856220927bb1221e475d5f816b8577efd2
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Filesize
270B
MD56910d9160b66c4395f587a279e80f132
SHA154949c04c8c0970aa5e2d3fb2912318daab97b98
SHA25672d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c
SHA51282967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9