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Analysis
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max time kernel
143s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
01/06/2024, 00:02
Static task
static1
Behavioral task
behavioral1
Sample
8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe
Resource
win10v2004-20240508-en
General
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Target
8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe
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Size
92KB
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MD5
984add71480cf5c831bc05a06e650f18
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SHA1
f1efb5c08c2d43aefcc0bfe5535eea6ba3821b63
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SHA256
8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32
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SHA512
b644cf72c7f8ee18d81fdaa4b3088d30658e03931d26b28ec468c33067324671eb1347aea2125aaabfaf5fa7846797848877dcb667af438a493de63b81578cf7
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SSDEEP
1536:1MIPgEm56wnbkKC2ZyBJU066lwLCRVEB+nR/y8cmNrEIviCOzuajkrDl9HNSi:11PgEOng1d66jRVa+n4NmNNouukrD7HI
Malware Config
Signatures
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Detects executables containing base64 encoded User Agent 4 IoCs
resource yara_rule behavioral1/memory/2672-15-0x0000000010000000-0x0000000010022000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/2672-19-0x0000000010000000-0x0000000010022000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/2672-21-0x0000000010000000-0x0000000010022000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/2672-22-0x0000000010000000-0x0000000010022000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent -
UPX dump on OEP (original entry point) 7 IoCs
resource yara_rule behavioral1/memory/2524-11-0x0000000000400000-0x0000000000428000-memory.dmp UPX behavioral1/files/0x0014000000015c2f-12.dat UPX behavioral1/memory/2672-14-0x0000000010000000-0x0000000010022000-memory.dmp UPX behavioral1/memory/2672-15-0x0000000010000000-0x0000000010022000-memory.dmp UPX behavioral1/memory/2672-19-0x0000000010000000-0x0000000010022000-memory.dmp UPX behavioral1/memory/2672-21-0x0000000010000000-0x0000000010022000-memory.dmp UPX behavioral1/memory/2672-22-0x0000000010000000-0x0000000010022000-memory.dmp UPX -
Blocklisted process makes network request 10 IoCs
flow pid Process 3 2672 rundll32.exe 5 2672 rundll32.exe 8 2672 rundll32.exe 9 2672 rundll32.exe 10 2672 rundll32.exe 13 2672 rundll32.exe 14 2672 rundll32.exe 15 2672 rundll32.exe 17 2672 rundll32.exe 18 2672 rundll32.exe -
Deletes itself 1 IoCs
pid Process 2524 fwvxg.exe -
Executes dropped EXE 1 IoCs
pid Process 2524 fwvxg.exe -
Loads dropped DLL 3 IoCs
pid Process 2748 cmd.exe 2748 cmd.exe 2672 rundll32.exe -
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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resource yara_rule behavioral1/files/0x0014000000015c2f-12.dat upx behavioral1/memory/2672-14-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2672-15-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2672-19-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2672-21-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2672-22-0x0000000010000000-0x0000000010022000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\eadgfbde\\awogob.wga\",crc32" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Kills process with taskkill 1 IoCs
pid Process 2520 taskkill.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2248 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2672 rundll32.exe 2672 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2672 rundll32.exe Token: SeDebugPrivilege 2520 taskkill.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1368 8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe 2524 fwvxg.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1368 wrote to memory of 2748 1368 8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe 28 PID 1368 wrote to memory of 2748 1368 8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe 28 PID 1368 wrote to memory of 2748 1368 8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe 28 PID 1368 wrote to memory of 2748 1368 8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe 28 PID 2748 wrote to memory of 2248 2748 cmd.exe 30 PID 2748 wrote to memory of 2248 2748 cmd.exe 30 PID 2748 wrote to memory of 2248 2748 cmd.exe 30 PID 2748 wrote to memory of 2248 2748 cmd.exe 30 PID 2748 wrote to memory of 2524 2748 cmd.exe 31 PID 2748 wrote to memory of 2524 2748 cmd.exe 31 PID 2748 wrote to memory of 2524 2748 cmd.exe 31 PID 2748 wrote to memory of 2524 2748 cmd.exe 31 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2524 wrote to memory of 2672 2524 fwvxg.exe 32 PID 2672 wrote to memory of 2520 2672 rundll32.exe 33 PID 2672 wrote to memory of 2520 2672 rundll32.exe 33 PID 2672 wrote to memory of 2520 2672 rundll32.exe 33 PID 2672 wrote to memory of 2520 2672 rundll32.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe"C:\Users\Admin\AppData\Local\Temp\8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\fwvxg.exe "C:\Users\Admin\AppData\Local\Temp\8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:2248
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C:\Users\Admin\AppData\Local\Temp\fwvxg.exeC:\Users\Admin\AppData\Local\Temp\\fwvxg.exe "C:\Users\Admin\AppData\Local\Temp\8572a8f4e9f1b4d6655a12f761558adf04ec5086d8d5304052cc9aa041186d32.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2524 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\eadgfbde\awogob.wga",crc32 C:\Users\Admin\AppData\Local\Temp\fwvxg.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2672 -
\??\c:\windows\SysWOW64\taskkill.exetaskkill /f /im attrib.exe5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
57KB
MD52f53f49e01f09d6e6064871eec1955cd
SHA1a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f
SHA256964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d
SHA5122cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218
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Filesize
92KB
MD5218513316f2446841246e7ddbaafce00
SHA1855b8b42349fcf9d41c6f47bc339ff66d60908a5
SHA256e12681fe42c8e51d9880e9a69d0ecfe662cfdeac5a1742ccbcff38fda341ebe1
SHA5124d6c15401a2edbf6694e4669e101fa7f749c56f8fdba6f581bce2f222c41cdd02a5afbdd0b9e47546d7db35260fe95d14b216d1efee6842d5f048a6facd3a8fb