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

Executes dropped EXE 1 IoCs

pid	Process
3208	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
49	www.checkip.org

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	msmsn.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	msmsn.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	msmsn.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	msmsn.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE\W071CHQQ.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	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msmsn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
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\ZoneMap\	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	msmsn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	msmsn.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	msmsn.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3208	msmsn.exe
3208	msmsn.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3208	msmsn.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 3720	4680	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	99
PID 4680 wrote to memory of 3720	4680	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	99
PID 4680 wrote to memory of 3720	4680	37e5967ee5f1218987937bf2349e6b2c67d47f254a4b25fdf83ccafd6bd87b8a.exe	99

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:4680
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\hjxetd.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3720

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:3208

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
d6a97a692bd1e1848515d83861493469

SHA1
9d10a05c1339012a7e92590a48e7de32681249e6

SHA256
ba2726ec2d0d9f228d92d9dc0c92a83997707447d0aeb0b7369126b1698a3619

SHA512
d009b1cadcea5ae0bcf1d597df155856ee8efa46699caa6febc3ce23d712d610e4fb959351c1ae1837f289c8d7634ded628132d04c49c0ea1f1c72c9b57252d2

Download Submit
memory/3208-12-0x00000000004D0000-0x00000000004EB000-memory.dmp

Filesize
108KB

Download
memory/3208-16-0x00000000004D0000-0x00000000004EB000-memory.dmp

Filesize
108KB

Download
memory/3208-25-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4680-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4680-11-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4680-15-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download

Analysis

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