be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95

General

Target

be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Size

55KB
MD5

10039d897089d346f747ef3090931f8e
SHA1

43eae17022239ef0f3bdac726b2a2a1ca2ef1f0e
SHA256

be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95
SHA512

f242dadc509dcbf2d6b7ac6e5b7cc6c0f2d119f579c98a216cc692dd4a99bdee7f21abb40290fc0a23855e3a040fed478705be1c476aafc812dc4c87f617df24
SSDEEP

1536:V3cpyORJLuB4P4AJJv4Romu/3LaNHRIdw4:V3c1fP4AJJv45wceV

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe

Deletes itself 1 IoCs

pid	Process
1804	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\ie15\Internat Explorer\Desktop.ini	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\ie15\Internat Explorer\Desktop.ini	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
File created	C:\Program Files (x86)\Microsoft\ie15\Internat Explorer\target.lnk	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
File opened for modification	C:\Program Files (x86)\Microsoft\ie15\Internat Explorer	attrib.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.ogc\ = "ogcfile"	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile\DefaultIcon\ = "%1"	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile\shell	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile\shell\open	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft\\ie%S5\\%2Internat Explorer\""	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.ogc	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile\DefaultIcon	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogcfile\shell\open\command	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1520	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	27
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30
PID 960 wrote to memory of 1804	960	be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe	30

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1520	attrib.exe

C:\Users\Admin\AppData\Local\Temp\be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe
"C:\Users\Admin\AppData\Local\Temp\be7f00d1d11d9923af866230478b8f01aeef0575aa784f288a3f18ae17e51a95.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:960
- C:\Windows\SysWOW64\attrib.exe
  "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\ie15\Internat Explorer" +s
  2⤵
  - Drops file in Program Files directory
  - Views/modifies file attributes
  PID:1520
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp.bat" "
  2⤵
  - Deletes itself
  PID:1804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
250B

MD5
41878635eb56e29dc2a9298554b0c3c0

SHA1
338086ebd12acae8c25df166b47e2199c5e3eb67

SHA256
5801370a8bd4e345ad02fbddef22c2550653ff58b34ec318f6413fd5451fdd90

SHA512
fe3b90848fc22b1fed9f22cd397e0c688c1e919628796a470541ca59c0a7943b87905e609c4fd6f3de5aa24ea360a1cdf68f8f77d334cd9eb014f52168bae84d

Download Submit
\Users\Admin\AppData\Local\Temp\nsj64BF.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
memory/960-54-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1520-55-0x0000000000000000-mapping.dmp

Download
memory/1804-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads