Analysis
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max time kernel
140s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
20/07/2023, 07:03
Static task
static1
Behavioral task
behavioral1
Sample
confirm order.pdf.z.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
confirm order.pdf.z.exe
Resource
win10v2004-20230703-en
General
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Target
confirm order.pdf.z.exe
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Size
645KB
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MD5
0b737638ee17ddf3c0ecf0c07d69618f
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SHA1
e5fe8deadae200f69ead7de852ae3b56160adceb
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SHA256
c26acaed8f3af9114db0aef3c6446531f65209789b4c423d18e4d40312bb633d
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SHA512
71cbd1c823824494ed08421c30179fa32a1a9bcc893b0f409aded01c96342810a8e023a2372671773eca9cbeee2e1664202feee7d50ff094e5ed21677c4d2b7e
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SSDEEP
12288:9oKS6ln+flo/XciMvtrlU8lIUip0d1JZ9bTJ0/zaCqQY7:9ofTdCjEtrXGCdzZ936zG7
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.kovarviajes.com - Port:
587 - Username:
[email protected] - Password:
P4tt1kr
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 IoCs
resource yara_rule behavioral2/memory/4836-142-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral2/memory/4836-147-0x0000000004EF0000-0x0000000004F00000-memory.dmp family_snakekeylogger -
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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 confirm order.pdf.z.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 confirm order.pdf.z.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 confirm order.pdf.z.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 47 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 896 set thread context of 4836 896 confirm order.pdf.z.exe 97 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4836 confirm order.pdf.z.exe 4836 confirm order.pdf.z.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 4836 confirm order.pdf.z.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4836 confirm order.pdf.z.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 PID 896 wrote to memory of 4836 896 confirm order.pdf.z.exe 97 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 confirm order.pdf.z.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 confirm order.pdf.z.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe"C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe"C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4836
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3