Analysis
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max time kernel
4294178s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20220223-en -
submitted
09-03-2022 20:54
General
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Target
ExternalRun.exe
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Size
274KB
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MD5
63525b6ba838d80f0eb16a666ff30de2
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SHA1
b11d70bf65b2b82df2c4aa46ac9dfce3c308b568
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SHA256
3c8acfa90eed5ab18fd669bea9d494d9fb96f964d9040ee03ff9889dbaada294
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SHA512
0709a2bb5d23ede0347e684a6512f0c282de68e3e7f1800ea1544e2f737cd77333bb0a496f6a0489d32df60e7d37760225e1fcac8d9905ae1b84d3de8ee348eb
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/947512216133980311/ImHpeYlo_A0Yhi0saM66pMBO7iLHhGK_k5MBohq8Jg4tn4gMe7dTpw1qEItYNQR_c9kp
Signatures
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44Caliber
An open source infostealer written in C#.
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DiscordWebhook 1 IoCs
Detect_Webhooks.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ExternalRun.exe"C:\Users\Admin\AppData\Local\Temp\ExternalRun.exe"1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
296KB
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Filesize
9.9MB
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Filesize
8KB