Analysis
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max time kernel
115s -
max time network
117s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
03-06-2024 10:15
Static task
static1
Behavioral task
behavioral1
Sample
Description CALIPSO dd 26.03.2024.doc.scr
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Description CALIPSO dd 26.03.2024.doc.scr
Resource
win10v2004-20240426-en
General
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Target
Description CALIPSO dd 26.03.2024.doc.scr
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Size
843KB
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MD5
6e075d09953e877c0ca9a98ac749dff2
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SHA1
a3dc16d79e5487c622c30545a47ac504573e9ea8
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SHA256
50ef75bd66c4bb9ce6001a41b53c0925e98eaed9b94b7125543ffecc0d4ace82
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SHA512
67bb4c0e98751650b4d170dc30d110c035b4115952fda1b725ff73290675d712b9947e79f7f424df2b2e9a40d9bddbbe33bbc1147552c99ee0c0da8cc3a0d550
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SSDEEP
24576:3MYeLSN5iFoayUfVtUv6LPg/Vv82DFF4:3MYeGN5iFZyMNzg/2wFF4
Malware Config
Extracted
Protocol: ftp- Host:
beirutrest.com - Port:
21 - Username:
[email protected] - Password:
9yXQ39wz(uL+
Extracted
agenttesla
Protocol: ftp- Host:
ftp://beirutrest.com - Port:
21 - Username:
[email protected] - Password:
9yXQ39wz(uL+
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 19 api.ipify.org 20 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Description CALIPSO dd 26.03.2024.doc.scrdescription pid process target process PID 1472 set thread context of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Description CALIPSO dd 26.03.2024.doc.scrpid process 4728 Description CALIPSO dd 26.03.2024.doc.scr 4728 Description CALIPSO dd 26.03.2024.doc.scr -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Description CALIPSO dd 26.03.2024.doc.scrdescription pid process Token: SeDebugPrivilege 4728 Description CALIPSO dd 26.03.2024.doc.scr -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Description CALIPSO dd 26.03.2024.doc.scrdescription pid process target process PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr PID 1472 wrote to memory of 4728 1472 Description CALIPSO dd 26.03.2024.doc.scr Description CALIPSO dd 26.03.2024.doc.scr
Processes
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C:\Users\Admin\AppData\Local\Temp\Description CALIPSO dd 26.03.2024.doc.scr"C:\Users\Admin\AppData\Local\Temp\Description CALIPSO dd 26.03.2024.doc.scr" /S1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Users\Admin\AppData\Local\Temp\Description CALIPSO dd 26.03.2024.doc.scr"C:\Users\Admin\AppData\Local\Temp\Description CALIPSO dd 26.03.2024.doc.scr"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4728
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Description CALIPSO dd 26.03.2024.doc.scr.log
Filesize1KB
MD5b7b9acb869ccc7f7ecb5304ec0384dee
SHA16a90751c95817903ee833d59a0abbef425a613b3
SHA2568cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4
SHA5127bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764