Analysis
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max time kernel
124s -
max time network
127s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
20-01-2021 06:32
Static task
static1
Behavioral task
behavioral1
Sample
IMG_50781.pdf.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
IMG_50781.pdf.exe
Resource
win10v20201028
General
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Target
IMG_50781.pdf.exe
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Size
1.4MB
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MD5
86b473ac3935c031354a80662a66e7c7
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SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69
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SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585
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SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4036-27-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger behavioral2/memory/4036-28-0x000000000046372E-mapping.dmp family_snakekeylogger -
Executes dropped EXE 2 IoCs
Processes:
mpog.exeInstallUtil.exepid process 1364 mpog.exe 4036 InstallUtil.exe -
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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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\snwy = "C:\\Users\\Admin\\mpog.exe" reg.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 13 checkip.dyndns.org 16 freegeoip.app 17 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
mpog.exedescription pid process target process PID 1364 set thread context of 4036 1364 mpog.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
Processes:
IMG_50781.pdf.exempog.exeInstallUtil.exepid process 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1108 IMG_50781.pdf.exe 1364 mpog.exe 1364 mpog.exe 4036 InstallUtil.exe 4036 InstallUtil.exe 4036 InstallUtil.exe 4036 InstallUtil.exe 4036 InstallUtil.exe 4036 InstallUtil.exe 4036 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
IMG_50781.pdf.exempog.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1108 IMG_50781.pdf.exe Token: SeDebugPrivilege 1364 mpog.exe Token: SeDebugPrivilege 4036 InstallUtil.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
IMG_50781.pdf.execmd.exempog.exedescription pid process target process PID 1108 wrote to memory of 580 1108 IMG_50781.pdf.exe cmd.exe PID 1108 wrote to memory of 580 1108 IMG_50781.pdf.exe cmd.exe PID 1108 wrote to memory of 580 1108 IMG_50781.pdf.exe cmd.exe PID 580 wrote to memory of 3616 580 cmd.exe reg.exe PID 580 wrote to memory of 3616 580 cmd.exe reg.exe PID 580 wrote to memory of 3616 580 cmd.exe reg.exe PID 1108 wrote to memory of 1364 1108 IMG_50781.pdf.exe mpog.exe PID 1108 wrote to memory of 1364 1108 IMG_50781.pdf.exe mpog.exe PID 1108 wrote to memory of 1364 1108 IMG_50781.pdf.exe mpog.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe PID 1364 wrote to memory of 4036 1364 mpog.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\IMG_50781.pdf.exe"C:\Users\Admin\AppData\Local\Temp\IMG_50781.pdf.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "snwy" /t REG_SZ /d "C:\Users\Admin\mpog.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "snwy" /t REG_SZ /d "C:\Users\Admin\mpog.exe"3⤵
- Adds Run key to start application
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C:\Users\Admin\mpog.exe"C:\Users\Admin\mpog.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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C:\Users\Admin\mpog.exeMD5
86b473ac3935c031354a80662a66e7c7
SHA1e7a5d577953d8f573409bca306e2bdde5d9d6d69
SHA256daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585
SHA5126ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82
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C:\Users\Admin\mpog.exeMD5
86b473ac3935c031354a80662a66e7c7
SHA1e7a5d577953d8f573409bca306e2bdde5d9d6d69
SHA256daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585
SHA5126ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82
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memory/580-10-0x0000000000000000-mapping.dmp
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memory/1108-9-0x00000000056E0000-0x00000000056E1000-memory.dmpFilesize
4KB
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memory/1108-3-0x0000000000BB0000-0x0000000000BB1000-memory.dmpFilesize
4KB
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memory/1108-8-0x0000000007F10000-0x0000000007F11000-memory.dmpFilesize
4KB
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memory/1108-2-0x0000000073290000-0x000000007397E000-memory.dmpFilesize
6.9MB
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memory/1108-12-0x00000000056E1000-0x00000000056E2000-memory.dmpFilesize
4KB
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memory/1108-5-0x00000000055A0000-0x00000000055A1000-memory.dmpFilesize
4KB
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memory/1108-7-0x0000000003040000-0x0000000003041000-memory.dmpFilesize
4KB
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memory/1108-6-0x0000000003020000-0x000000000303E000-memory.dmpFilesize
120KB
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memory/1364-13-0x0000000000000000-mapping.dmp
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memory/1364-16-0x0000000073290000-0x000000007397E000-memory.dmpFilesize
6.9MB
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memory/1364-24-0x0000000007FC0000-0x0000000007FCB000-memory.dmpFilesize
44KB
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memory/1364-25-0x0000000000A90000-0x0000000000A91000-memory.dmpFilesize
4KB
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memory/1364-26-0x00000000025C1000-0x00000000025C2000-memory.dmpFilesize
4KB
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memory/1364-23-0x00000000025C0000-0x00000000025C1000-memory.dmpFilesize
4KB
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memory/3616-11-0x0000000000000000-mapping.dmp
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memory/4036-27-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
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memory/4036-28-0x000000000046372E-mapping.dmp
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memory/4036-34-0x00000000055B0000-0x00000000055B1000-memory.dmpFilesize
4KB
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memory/4036-31-0x0000000073290000-0x000000007397E000-memory.dmpFilesize
6.9MB
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memory/4036-36-0x0000000005200000-0x0000000005201000-memory.dmpFilesize
4KB
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memory/4036-37-0x00000000060C0000-0x00000000060C1000-memory.dmpFilesize
4KB
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memory/4036-39-0x0000000006030000-0x0000000006031000-memory.dmpFilesize
4KB