Analysis
- max time kernel
150s - max time network
114s - platform
windows10_x64 - resource
win10v20210410 - submitted
02/06/2021, 10:48
General
- Target SecuriteInfo.com.Troj.Kryptik-TR.30930.16772.exe
- Size 321KB
- Sample210602-yrslrbe58x
- SHA256 c129ece5ce4cc5bc3c8d93ba6801c79e644bf838f4adb262bf7780476576bde1
Malware Config
Extracted
-
smokeloader
-
2020
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http://999080321newfolder1002002131-service1002.space/
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http://999080321newfolder1002002231-service1002.space/
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http://999080321newfolder3100231-service1002.space/
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http://999080321newfolder1002002431-service1002.space/
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http://999080321newfolder1002002531-service1002.space/
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http://999080321newfolder33417-012425999080321.space/
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http://999080321test125831-service10020125999080321.space/
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http://999080321test136831-service10020125999080321.space/
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http://999080321test147831-service10020125999080321.space/
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http://999080321test146831-service10020125999080321.space/
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http://999080321test134831-service10020125999080321.space/
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http://999080321est213531-service1002012425999080321.ru/
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http://999080321yes1t3481-service10020125999080321.ru/
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http://999080321test13561-service10020125999080321.su/
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http://999080321test14781-service10020125999080321.info/
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http://999080321test13461-service10020125999080321.net/
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http://999080321test15671-service10020125999080321.tech/
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http://999080321test12671-service10020125999080321.online/
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http://999080321utest1341-service10020125999080321.ru/
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http://999080321uest71-service100201dom25999080321.ru/
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 2 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 19 IoCs
- Suspicious use of AdjustPrivilegeToken 11 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 44 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Troj.Kryptik-TR.30930.16772.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Troj.Kryptik-TR.30930.16772.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Troj.Kryptik-TR.30930.16772.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Troj.Kryptik-TR.30930.16772.exe"2⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\CA2B.exeC:\Users\Admin\AppData\Local\Temp\CA2B.exe1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Local\Temp\D1AE.exeC:\Users\Admin\AppData\Local\Temp\D1AE.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/628-147-0x0000000000DA0000-0x0000000000DAF000-memory.dmp
memory/628-146-0x0000000000DB0000-0x0000000000DB9000-memory.dmp
memory/1128-140-0x0000000000DE0000-0x0000000000DE7000-memory.dmp
memory/1128-141-0x0000000000DD0000-0x0000000000DDC000-memory.dmp
memory/1428-164-0x0000000007340000-0x0000000007341000-memory.dmp
memory/1428-155-0x0000000005DA0000-0x0000000005DA1000-memory.dmp
memory/1428-131-0x00000000054F0000-0x00000000054F1000-memory.dmp
memory/1428-132-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
memory/1428-133-0x0000000004E20000-0x0000000004E21000-memory.dmp
memory/1428-134-0x0000000004ED0000-0x0000000004ED1000-memory.dmp
memory/1428-128-0x0000000000540000-0x0000000000541000-memory.dmp
memory/1428-159-0x0000000006210000-0x0000000006211000-memory.dmp
memory/1428-137-0x0000000004E60000-0x0000000004E61000-memory.dmp
memory/1428-138-0x00000000050D0000-0x00000000050D1000-memory.dmp
memory/1428-163-0x0000000006130000-0x0000000006131000-memory.dmp
memory/1428-160-0x0000000006910000-0x0000000006911000-memory.dmp
memory/1684-152-0x0000000000BE0000-0x0000000000BE6000-memory.dmp
memory/1684-153-0x0000000000BD0000-0x0000000000BDC000-memory.dmp
memory/2756-119-0x0000000000790000-0x00000000007A7000-memory.dmp
memory/2784-167-0x0000000003020000-0x0000000003029000-memory.dmp
memory/2784-166-0x0000000003030000-0x0000000003035000-memory.dmp
memory/2936-114-0x0000000000400000-0x000000000040C000-memory.dmp
memory/3212-143-0x0000000000860000-0x0000000000867000-memory.dmp
memory/3212-144-0x0000000000850000-0x000000000085B000-memory.dmp
memory/3368-135-0x0000000000400000-0x0000000000474000-memory.dmp
memory/3368-136-0x0000000000150000-0x00000000001BB000-memory.dmp
memory/3532-161-0x00000000001F0000-0x00000000001F5000-memory.dmp
memory/3532-162-0x00000000001E0000-0x00000000001E9000-memory.dmp
memory/3876-149-0x0000000002D50000-0x0000000002D55000-memory.dmp
memory/3876-150-0x0000000002D40000-0x0000000002D49000-memory.dmp
memory/3908-157-0x00000000006D0000-0x00000000006D9000-memory.dmp
memory/3908-156-0x00000000006E0000-0x00000000006E4000-memory.dmp
memory/3952-117-0x0000000000460000-0x00000000005AA000-memory.dmp