Analysis
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max time kernel
71s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
02-05-2023 19:17
Static task
static1
Behavioral task
behavioral1
Sample
INS Rem CrdT TT copy.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
INS Rem CrdT TT copy.exe
Resource
win10v2004-20230221-en
General
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Target
INS Rem CrdT TT copy.exe
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Size
780KB
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MD5
9f9d2eeb4c55962e4771fed02a66ac89
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SHA1
1fc000f01ad7c8c55883aaeaceab5bbc5ef3fd77
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SHA256
91af5b7dfb0cba2f5a7b77d317adb7fac20692d9f759127ecbd780e23fc4673d
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SHA512
6624323775640a844729872e047dff32a7bb6cba6ba2cc801978ab327e1d4c6f0dc4228eb2ca8b8e71df56ce3732621d04cf9c69746f947ec9dbe9304898278c
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SSDEEP
12288:DC9PC6YN1Pg+70pKXQlIj5g15BL980v/J11paGdyAwFqJATUR5AzFu9:b5g1z98qZpaGIAAqApu9
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.bulktz.com.ng - Port:
587 - Username:
[email protected] - Password:
u%i2}{;Ma.sv - 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 7 IoCs
resource yara_rule behavioral1/memory/1512-65-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1512-66-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1512-68-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1512-70-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1512-72-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1512-73-0x0000000004C70000-0x0000000004CB0000-memory.dmp family_snakekeylogger behavioral1/memory/1512-74-0x0000000004C70000-0x0000000004CB0000-memory.dmp family_snakekeylogger -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 7 IoCs
resource yara_rule behavioral1/memory/1512-65-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/1512-66-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/1512-68-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/1512-70-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/1512-72-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/1512-73-0x0000000004C70000-0x0000000004CB0000-memory.dmp family_stormkitty behavioral1/memory/1512-74-0x0000000004C70000-0x0000000004CB0000-memory.dmp family_stormkitty -
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-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INS Rem CrdT TT copy.exe Key opened \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INS Rem CrdT TT copy.exe Key opened \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INS Rem CrdT TT copy.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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 836 set thread context of 1512 836 INS Rem CrdT TT copy.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1508 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 836 INS Rem CrdT TT copy.exe 1512 INS Rem CrdT TT copy.exe 1512 INS Rem CrdT TT copy.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 836 INS Rem CrdT TT copy.exe Token: SeDebugPrivilege 1512 INS Rem CrdT TT copy.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 836 wrote to memory of 1508 836 INS Rem CrdT TT copy.exe 28 PID 836 wrote to memory of 1508 836 INS Rem CrdT TT copy.exe 28 PID 836 wrote to memory of 1508 836 INS Rem CrdT TT copy.exe 28 PID 836 wrote to memory of 1508 836 INS Rem CrdT TT copy.exe 28 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 PID 836 wrote to memory of 1512 836 INS Rem CrdT TT copy.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INS Rem CrdT TT copy.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INS Rem CrdT TT copy.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INS Rem CrdT TT copy.exe"C:\Users\Admin\AppData\Local\Temp\INS Rem CrdT TT copy.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DYzOKOojLqW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp951F.tmp"2⤵
- Creates scheduled task(s)
PID:1508
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C:\Users\Admin\AppData\Local\Temp\INS Rem CrdT TT copy.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1512
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5ef8a1e51624fc195fbed35c1c830fe1d
SHA147f968a81aa23c22e15500f5bc9e63f9ee547751
SHA256653981c042ebc2fcf282b158afd82ed25b4d6487f5e2963ce9e46f4b52225915
SHA5124c82a71f94e7cab68814d8aca638eaef16f2cb39980c6114172e63cb58b49355340bd4c4949f88e468da7f726086117f49d0cecea4079b513729d5f46dc53f46