37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a

General

Target

37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe
Size

183KB
MD5

fa1fa2a6d0010eb19273b99083edc4f5
SHA1

6cf01330792abaada29c497001c6b0c98c6efa51
SHA256

37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a
SHA512

30b800a0a45536d678ae787141ad7d67967a580c5317271a97e570ebe28506d41b7fef8fb59e9905cf1df67abd0ed2cedf69a181f687afdeeabbe3a30d2844d8
SSDEEP

3072:zYDDQYmVX9y/vHw4/QljoV43DgvP5pSBlf+ATxbUX9ff1TmrcSQLPuYxS:zYDUVX9KvwpkgBBlfhbUd0LePN

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2360	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2976	msmsn.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	www.checkip.org

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	msmsn.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B3FCJ4TO.htm	msmsn.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msmsn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadDecisionReason = "1"	msmsn.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	msmsn.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}	msmsn.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadDecisionTime = 60bb4fa2791edb01	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadDecision = "0"	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\be-10-4c-db-63-6c	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	msmsn.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msmsn.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	msmsn.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadNetworkName = "Network 3"	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c\WpadDecisionReason = "1"	msmsn.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c\WpadDecisionTime = 60bb4fa2791edb01	msmsn.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msmsn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c\WpadDecision = "0"	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	msmsn.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2976	msmsn.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2976	msmsn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2360	2236	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	30
PID 2236 wrote to memory of 2360	2236	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	30
PID 2236 wrote to memory of 2360	2236	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	30
PID 2236 wrote to memory of 2360	2236	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	30

C:\Users\Admin\AppData\Local\Temp\37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe
"C:\Users\Admin\AppData\Local\Temp\37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\hjxetd.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2360

C:\Users\Admin\Modules\Bin\msmsn.exe
C:\Users\Admin\Modules\Bin\msmsn.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hjxetd.bat

Filesize
248B

MD5
fe515d88cd14f5ba20f8b83b1d76f434

SHA1
ca6de7bc0228e2765f84ad7816e51d7a3878df93

SHA256
f1c56c2da2fa68768d8bd7b0c3b62cb894d5b5ec3b75f7aecdcae9d933e3ba56

SHA512
c1b3d693aa9371b799ec7ec22dda5d435378cbbb9599fc4fed105585cb7c66034490544dd1dbd2e345fe1118b0366843ce2a25ebddf590b35197ebc597326cd2

Download Submit
C:\Users\Admin\Modules\Bin\msmsn.exe

Filesize
183KB

MD5
956e536bb5e663455e36da9a03c2a5d5

SHA1
33bb6ec93f80cd303d741d168f243d5c18036252

SHA256
0bc41ea80915dfe8ad86455aeb60b654af1620d65cfc81131832898ba58b0280

SHA512
4bcc85e585e4401866e9ed841d3e7633f0457ff72e4c4b47b824fc27e2875dfa22acfba5236354de0568c3fdd06d106ed47613f4e3aabdc3668f86dc2e25f795

Download Submit
memory/2236-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2236-10-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2236-19-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2976-18-0x0000000000480000-0x000000000049B000-memory.dmp

Filesize
108KB

Download
memory/2976-20-0x0000000000480000-0x000000000049B000-memory.dmp

Filesize
108KB

Download
memory/2976-29-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download

Analysis

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