General
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Target
PURCHASE ORDER -MINILEC INDIA.doc
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Size
809KB
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Sample
210120-w2ep9xqrz6
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MD5
46f80abc1386f97bb8245d2c716a1c73
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SHA1
356a25c462b51d8b1c962901f433f4775801d30f
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SHA256
6fdd3e3a66956b79b5fd8e6203b74d002943faa1ef4abd650699a2d9676441ac
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SHA512
8bd69717d3d42060ce617bdb57ee3ed264bc727945111bc64af6f6b5f3d045a27757b4cbb038c7382895ea8d9682a95d37a88de8903313f5e938788b5e3cf2f8
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE ORDER -MINILEC INDIA.doc
Resource
win7v20201028
Behavioral task
behavioral2
Sample
PURCHASE ORDER -MINILEC INDIA.doc
Resource
win10v20201028
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
noor.akbari@petrolnas.icu - Password:
@Mexico1.,
Targets
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Target
PURCHASE ORDER -MINILEC INDIA.doc
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Size
809KB
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MD5
46f80abc1386f97bb8245d2c716a1c73
-
SHA1
356a25c462b51d8b1c962901f433f4775801d30f
-
SHA256
6fdd3e3a66956b79b5fd8e6203b74d002943faa1ef4abd650699a2d9676441ac
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SHA512
8bd69717d3d42060ce617bdb57ee3ed264bc727945111bc64af6f6b5f3d045a27757b4cbb038c7382895ea8d9682a95d37a88de8903313f5e938788b5e3cf2f8
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Modifies WinLogon for persistence
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AgentTesla Payload
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Looks for VirtualBox Guest Additions in registry
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Blocklisted process makes network request
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Executes dropped EXE
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Looks for VMWare Tools registry key
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Loads dropped DLL
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Reads data files stored by FTP clients
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients
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
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
Winlogon Helper DLL
1Modify Existing Service
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
6Disabling Security Tools
3Virtualization/Sandbox Evasion
2