Analysis
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max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 01:29
Behavioral task
behavioral1
Sample
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
Resource
win10v2004-20231215-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-1-5-21-3427588347-1492276948-3422228430-1000\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 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c105953a741efc7c064b26b 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = cad905fad8023c56481e03acc1eec75250a588ef2003b6593829cfbcb6f68df301f0ccaa621a3af6a89fbff26f0da8a8d6cb0a8e0549764012f61d72c6c81db7603d35e1 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exepid Process 1184 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exepid Process 1184 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exedescription pid Process procid_target PID 1696 wrote to memory of 1184 1696 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 29 PID 1696 wrote to memory of 1184 1696 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 29 PID 1696 wrote to memory of 1184 1696 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 29 PID 1696 wrote to memory of 1184 1696 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"1⤵PID:2040
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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:1696 -
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:1184
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
22B
MD5364e617932d03a7ca7b74a7b3ecfe82f
SHA1d35cff04e6ff102cbe8888f4257897d32a8e4119
SHA2562b3868e20c1a36c0a43a9260f3a4abe7597949fe62d46b55eaedb212cf1521c1
SHA512af27d97937e2b764a425805301a93c02119af9be45505c235929fe9b9a615435f22d3f5de9d382ff7336d0dbfb56b51913ddc25de3157fcea6df681c50950b10
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Filesize
68B
MD573b0e11c502d71bd01ce7ad358264d33
SHA160ec1605b648d601e5fc9f8874f4e9653b994e91
SHA2569c205121f6a53114fe741c91b1a94d0c45f3d4af40d3cc90006b47a5aa49b766
SHA5120977632ba7f5b67aa1c4fef91af0f741a64a5a2d791d799c7dcf609aed4ceccaf57a7dbd8d6e385422e66c0f254a566464cadc15013de8c5e0fd9e5080c380e9
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Filesize
270B
MD56910d9160b66c4395f587a279e80f132
SHA154949c04c8c0970aa5e2d3fb2912318daab97b98
SHA25672d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c
SHA51282967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9