Analysis
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max time kernel
16s -
max time network
142s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 19:38
General
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Target
Akbank Hesap Özetiniz.exe
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Size
485KB
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MD5
1ded7c3c9c5752f13b73cbc9099b2127
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SHA1
d4f9158c3594e0242f651f41fc2b506b6bd11218
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SHA256
3eb30f7fa77eeed5c687b9514c1ef0e9cca4778a514e30a2a0c07949945407f4
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SHA512
7c66549a206f0afb802e7c684a19f7c3819b86b140f62e38bd290f5038c4d0b871d095a60813a9803d9b3c129f4fd957177f754d08decbb4f1795d8788a5d6ec
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
kroskofile
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
kroskofile
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload 2 IoCs
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rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of SetThreadContext 1 IoCs
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Suspicious behavior: EnumeratesProcesses 7 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Akbank Hesap Özetiniz.exe.logMD5
b4f7a6a57cb46d94b72410eb6a6d45a9
SHA169f3596ffa027202d391444b769ceea0ae14c5f7
SHA25623994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b
SHA512be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c
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memory/360-10-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/360-19-0x0000000005710000-0x0000000005711000-memory.dmpFilesize
4KB
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memory/360-18-0x0000000005180000-0x0000000005181000-memory.dmpFilesize
4KB
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memory/360-13-0x0000000073FA0000-0x000000007468E000-memory.dmpFilesize
6.9MB
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memory/360-11-0x000000000044A75E-mapping.dmp
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memory/4708-4-0x00000000085D0000-0x00000000085D1000-memory.dmpFilesize
4KB
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memory/4708-8-0x000000000A570000-0x000000000A5C1000-memory.dmpFilesize
324KB
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memory/4708-9-0x000000000A670000-0x000000000A671000-memory.dmpFilesize
4KB
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memory/4708-7-0x0000000003050000-0x0000000003053000-memory.dmpFilesize
12KB
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memory/4708-6-0x0000000008160000-0x0000000008161000-memory.dmpFilesize
4KB
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memory/4708-5-0x00000000081B0000-0x00000000081B1000-memory.dmpFilesize
4KB
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memory/4708-0-0x0000000073FA0000-0x000000007468E000-memory.dmpFilesize
6.9MB
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memory/4708-3-0x0000000005960000-0x00000000059B8000-memory.dmpFilesize
352KB
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memory/4708-1-0x0000000000EE0000-0x0000000000EE1000-memory.dmpFilesize
4KB