f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2

General

Target

f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Size

59KB
MD5

a224082e1b6e1c84405ff64798586bfe
SHA1

2179df0219384c4b1eb158553725a6fd2d6d3ee3
SHA256

f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2
SHA512

43845d3a6de0195cce665efa27ddb2d869d8e9a042f3a33d1699cce670901e1ffee7073a4e37c9be07c3c5ad6e308ee7aaec5402dcbb8936bb6f1312337cdef2
SSDEEP

1536:xEhhiul08b2lWB2A/SnK/ibILzbB2EEdeKrx+X6d:xEhh5JbhBv/S4LXBBkke

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Loads dropped DLL 2 IoCs

pid	Process
1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
2044	RunDll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\System Windows Share = "RunDll32 \"C:\\Windows\\Offline Web Pages\\logmssvc.dll\",Init"	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Recovery\hostsrv.dll	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
File created	C:\Windows\SysWOW64\Recovery\hostsrv.dll	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Offline Web Pages\logmssvc.dll	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
File opened for modification	C:\Windows\Offline Web Pages\logmssvc.dll	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
File created	C:\Windows\Offline Web Pages\hostupup.dll	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
File opened for modification	C:\Windows\Offline Web Pages\hostupup.dll	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe

Enumerates system info in registry 2 TTPs 12 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0\Identifier	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key created	\REGISTRY\MACHINE\HARDWARE\Description\System\MultifunctionAdapter\0\DiskController	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key created	\REGISTRY\MACHINE\HARDWARE\Description\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key created	\REGISTRY\MACHINE\HARDWARE\Description\System\MultifunctionAdapter	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key created	\REGISTRY\MACHINE\HARDWARE\Description\System\MultifunctionAdapter\0	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key created	\REGISTRY\MACHINE\HARDWARE\Description\System\MultifunctionAdapter\0\DiskController\0	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
Key created	\REGISTRY\MACHINE\HARDWARE\Description\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 1140	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	15
PID 1668 wrote to memory of 1140	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	15
PID 1668 wrote to memory of 1208	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	14
PID 1668 wrote to memory of 1208	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	14
PID 1668 wrote to memory of 1256	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	13
PID 1668 wrote to memory of 1256	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	13
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28
PID 1668 wrote to memory of 2044	1668	f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe	28

C:\Users\Admin\AppData\Local\Temp\f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe
"C:\Users\Admin\AppData\Local\Temp\f3c4a16ea1753b30ef61a23c33b316cae904764e649c251fc091fe38f31a39c2.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\RunDll32.exe
  RunDll32 "C:\Users\Admin\AppData\Local\Temp\6604.tmp",Init
  2⤵
  - Loads dropped DLL
  PID:2044

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1256

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1208

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\6604.tmp

Filesize
56KB

MD5
dd8105723c29404a405c3faa00ecdd57

SHA1
2545315d4607edbcc6d44fd4e3d6131ea3a54b5c

SHA256
44a620d7a537f1d061e9c33264cec9187530cbf29fca04e2765c14a6fc618e3b

SHA512
9900ee5d9b32d272b1aed24c760b85a511d962401cffbe1726b3b16dfa0853b05ab2aa5df9d96951f98bc979a2e71ffd1c4171b99613b5c9d2bf01be7654f1c0

Download Submit
\Users\Admin\AppData\Local\Temp\6604.tmp

Filesize
56KB

MD5
dd8105723c29404a405c3faa00ecdd57

SHA1
2545315d4607edbcc6d44fd4e3d6131ea3a54b5c

SHA256
44a620d7a537f1d061e9c33264cec9187530cbf29fca04e2765c14a6fc618e3b

SHA512
9900ee5d9b32d272b1aed24c760b85a511d962401cffbe1726b3b16dfa0853b05ab2aa5df9d96951f98bc979a2e71ffd1c4171b99613b5c9d2bf01be7654f1c0

Download Submit
\Users\Admin\AppData\Local\Temp\6604.tmp

Filesize
56KB

MD5
dd8105723c29404a405c3faa00ecdd57

SHA1
2545315d4607edbcc6d44fd4e3d6131ea3a54b5c

SHA256
44a620d7a537f1d061e9c33264cec9187530cbf29fca04e2765c14a6fc618e3b

SHA512
9900ee5d9b32d272b1aed24c760b85a511d962401cffbe1726b3b16dfa0853b05ab2aa5df9d96951f98bc979a2e71ffd1c4171b99613b5c9d2bf01be7654f1c0

Download Submit
memory/1140-58-0x0000000001C40000-0x0000000001C41000-memory.dmp

Filesize
4KB

Download
memory/1668-55-0x00000000750E0000-0x0000000075103000-memory.dmp

Filesize
140KB

Download
memory/1668-56-0x00000000750E0000-0x0000000075103000-memory.dmp

Filesize
140KB

Download
memory/1668-71-0x00000000750E0000-0x0000000075103000-memory.dmp

Filesize
140KB

Download
memory/2044-59-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

Download
memory/2044-69-0x00000000750E0000-0x0000000075103000-memory.dmp

Filesize
140KB

Download
memory/2044-70-0x00000000750E0000-0x0000000075103000-memory.dmp

Filesize
140KB

Download
memory/2044-72-0x00000000750E0000-0x0000000075103000-memory.dmp

Filesize
140KB

Download

Analysis

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