Analysis
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max time kernel
145s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
17-07-2023 06:02
Static task
static1
Behavioral task
behavioral1
Sample
TT.gz.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
TT.gz.exe
Resource
win10v2004-20230703-en
General
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Target
TT.gz.exe
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Size
147KB
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MD5
841bc4b28567bc672d71cd8a86318236
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SHA1
80ff2c2f2e6a5fb63f9d067b158410549ce3a9fd
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SHA256
477a2d13d980cac6ec09b09eda410ea674cb8aa69da8a1e6e2a80fcf3b290c9a
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SHA512
35660c01c79abad13d99757c4854092b6e3f8f736b892a92f7b6cf0f50a608e4f966f032aeefc3403e4bbda98f604ec25efed1feb5f329fcdbb02fd4bc33b479
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SSDEEP
3072:oxmMRd5YFofTo4dXqJYNebTdz8rlmMtcDdNM8x/8v:osMRX04dXgYNeixbtcRNMz
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BsrzRc = "C:\\Users\\Admin\\AppData\\Roaming\\BsrzRc\\BsrzRc.exe" TT.gz.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 64 api.ipify.org 63 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2548 set thread context of 1976 2548 TT.gz.exe 91 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2548 TT.gz.exe 1976 TT.gz.exe 1976 TT.gz.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2548 TT.gz.exe Token: SeDebugPrivilege 1976 TT.gz.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91 PID 2548 wrote to memory of 1976 2548 TT.gz.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\TT.gz.exe"C:\Users\Admin\AppData\Local\Temp\TT.gz.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Users\Admin\AppData\Local\Temp\TT.gz.exe"C:\Users\Admin\AppData\Local\Temp\TT.gz.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1976
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5e3664dc7632b7d6913e0e818b02ae363
SHA108a21474ab2598556ffd49ac64cca79735b65682
SHA25654e313b19bc33f1d3b156241c80660cedf93d8c4f5f28fc630f4b3ec8574925d
SHA512dc343596ad3a71a26d06c2ccfbd5d00056fa642c7477aab48f0239313eb8f1db0633e8a84f753e79b1c7a67e6e2e1181fdec3e900eb5adb2b4b3308a09ece020