Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25-03-2024 04:25
Static task
static1
Behavioral task
behavioral1
Sample
dd3a52585c2603476b5fb647d3b6bbce.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
dd3a52585c2603476b5fb647d3b6bbce.exe
Resource
win10v2004-20240226-en
General
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Target
dd3a52585c2603476b5fb647d3b6bbce.exe
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Size
1.1MB
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MD5
dd3a52585c2603476b5fb647d3b6bbce
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SHA1
fa151caa6c0f905c046dd94512807bb29fdb3fb9
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SHA256
64c9a9351771d678aa64e80453e7310b25b48458d64f7e34d98a36a2084bfe0e
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SHA512
8c91de0a2e6faf47cca410337015123fddc9909c28cfc760ad998faefc822bd7cf0cca43633017faabe0921a6205d3a1ef86eed0630d887a5c911f728d90ad22
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SSDEEP
24576:/kwOsBgo0q4wMMBmCmTOUd+L6k5XWuZB6gQ0AnQK7cKRe:8xoHMUmCm6Ud+z5XhZCQKfRe
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
smtp.trellaborg.com - Port:
587 - Username:
[email protected] - Password:
p4+vh#8Puf*N - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2200-18-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
Processes:
resource yara_rule behavioral2/memory/4352-8-0x0000000005860000-0x0000000005872000-memory.dmp CustAttr -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
dd3a52585c2603476b5fb647d3b6bbce.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation dd3a52585c2603476b5fb647d3b6bbce.exe -
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 146 checkip.dyndns.org 149 freegeoip.app 150 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
dd3a52585c2603476b5fb647d3b6bbce.exedescription pid process target process PID 4352 set thread context of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1680 2200 WerFault.exe dd3a52585c2603476b5fb647d3b6bbce.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
dd3a52585c2603476b5fb647d3b6bbce.exepid process 2200 dd3a52585c2603476b5fb647d3b6bbce.exe 2200 dd3a52585c2603476b5fb647d3b6bbce.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
dd3a52585c2603476b5fb647d3b6bbce.exedescription pid process Token: SeDebugPrivilege 2200 dd3a52585c2603476b5fb647d3b6bbce.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
dd3a52585c2603476b5fb647d3b6bbce.exedescription pid process target process PID 4352 wrote to memory of 4708 4352 dd3a52585c2603476b5fb647d3b6bbce.exe schtasks.exe PID 4352 wrote to memory of 4708 4352 dd3a52585c2603476b5fb647d3b6bbce.exe schtasks.exe PID 4352 wrote to memory of 4708 4352 dd3a52585c2603476b5fb647d3b6bbce.exe schtasks.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe PID 4352 wrote to memory of 2200 4352 dd3a52585c2603476b5fb647d3b6bbce.exe dd3a52585c2603476b5fb647d3b6bbce.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe"C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4352 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ktcwlvfGb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2507.tmp"2⤵
- Creates scheduled task(s)
PID:4708
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C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe"C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2200 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 17803⤵
- Program crash
PID:1680
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2200 -ip 22001⤵PID:1836
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\dd3a52585c2603476b5fb647d3b6bbce.exe.log
Filesize1KB
MD517573558c4e714f606f997e5157afaac
SHA113e16e9415ceef429aaf124139671ebeca09ed23
SHA256c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
SHA512f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
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Filesize
1KB
MD5f7356cf7f84a3bc777778af3b007776d
SHA1c5a2ca2cfdd7735ede9c899b0ee6588f3d5b0b9e
SHA256dbea9af92552835cbe03c826c634c45f64bce7ee4faee7d35acc391be9209649
SHA512c3ed5e8fdd9faef86edc58389ab13a3cbcbf06ffa08661717fcf2ef01e473a0f47577a211d983ac58d35a0f35a33333e4c3de94d2300045a491278ce373e0c0e