Analysis
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max time kernel
62s -
max time network
112s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
22-06-2021 11:28
Static task
static1
Behavioral task
behavioral1
Sample
PO031656.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
PO031656.exe
Resource
win10v20210410
General
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Target
PO031656.exe
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Size
893KB
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MD5
49107ecd2118e55b971088b19d1f05b2
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SHA1
7978c25b86b47dba57daefe69f897338ed0d3694
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SHA256
e89683ea60a246d6fc1744cafaacc17872fe348a3d655793d6513a1271151e60
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SHA512
557aa31b3a37455005ade68b9cb000e3fcb75cbc369025be12475a40b4b7161e203ab21dcea3f9955ae3efae56d13f4caace24eaf4946dbc0ffec3c00975a85c
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
nicolas.sautter@chsauter-bc.com - Password:
111aaa
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3700-125-0x0000000000400000-0x000000000046A000-memory.dmp family_snakekeylogger behavioral2/memory/3700-126-0x000000000046457E-mapping.dmp family_snakekeylogger behavioral2/memory/3700-132-0x0000000004FA0000-0x000000000549E000-memory.dmp family_snakekeylogger -
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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 19 freegeoip.app 15 checkip.dyndns.org 18 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO031656.exedescription pid process target process PID 3904 set thread context of 3700 3904 PO031656.exe PO031656.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
PO031656.exepid process 3700 PO031656.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PO031656.exedescription pid process Token: SeDebugPrivilege 3700 PO031656.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
PO031656.exedescription pid process target process PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe PID 3904 wrote to memory of 3700 3904 PO031656.exe PO031656.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO031656.exe"C:\Users\Admin\AppData\Local\Temp\PO031656.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO031656.exe"C:\Users\Admin\AppData\Local\Temp\PO031656.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO031656.exe.logMD5
90acfd72f14a512712b1a7380c0faf60
SHA140ba4accb8faa75887e84fb8e38d598dc8cf0f12
SHA25620806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86
SHA51229dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9
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memory/3700-125-0x0000000000400000-0x000000000046A000-memory.dmpFilesize
424KB
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memory/3700-133-0x0000000006300000-0x0000000006301000-memory.dmpFilesize
4KB
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memory/3700-132-0x0000000004FA0000-0x000000000549E000-memory.dmpFilesize
5.0MB
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memory/3700-126-0x000000000046457E-mapping.dmp
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memory/3904-121-0x00000000056B0000-0x0000000005BAE000-memory.dmpFilesize
5.0MB
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memory/3904-114-0x0000000000C90000-0x0000000000C91000-memory.dmpFilesize
4KB
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memory/3904-122-0x00000000059F0000-0x0000000005A00000-memory.dmpFilesize
64KB
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memory/3904-123-0x0000000007360000-0x00000000073CD000-memory.dmpFilesize
436KB
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memory/3904-124-0x0000000005010000-0x0000000005083000-memory.dmpFilesize
460KB
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memory/3904-120-0x0000000005870000-0x0000000005871000-memory.dmpFilesize
4KB
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memory/3904-119-0x0000000005580000-0x0000000005581000-memory.dmpFilesize
4KB
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memory/3904-118-0x00000000056B0000-0x00000000056B1000-memory.dmpFilesize
4KB
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memory/3904-117-0x0000000005BB0000-0x0000000005BB1000-memory.dmpFilesize
4KB
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memory/3904-116-0x0000000005610000-0x0000000005611000-memory.dmpFilesize
4KB