69b06922d1b8341bb0909ae83010e4e5c934a1c9f92ffe8d57f34153c0010ff8

Target
BulkFileChanger.exe
Size 130KB
Sample260715-sdw8bsh13v
SHA256 69b06922d1b8341bb0909ae83010e4e5c934a1c9f92ffe8d57f34153c0010ff8
MD5 2dfa351e02f71650ce635970c995cc59
SHA1 ad06195853ade67cdccabc0c7ece7cf17317f7ee
SHA512 52439034ec1c21410f24755db3d84dbea1a64ecd0119478a6b3d7425bf8ad0c585390dc4e2af6463689f97dd303360849108ba0968a836c517b7ca3411dc5788
SSDEEP 3072:WFvLAdnnVYKlwMaofGPP7lzbwNZGCFG6IdSEnvrZq96S:EjKvKlz1CX
TLSH
T124D3280673F805E9E4BBD675CD324622DBB2BC684934C72F47A4D98A1F23321BD25726
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Targets

- Target
  BulkFileChanger.exe
- Size 130KB
- SHA256 69b06922d1b8341bb0909ae83010e4e5c934a1c9f92ffe8d57f34153c0010ff8
- MD5 2dfa351e02f71650ce635970c995cc59
- SHA1 ad06195853ade67cdccabc0c7ece7cf17317f7ee
- SHA512 52439034ec1c21410f24755db3d84dbea1a64ecd0119478a6b3d7425bf8ad0c585390dc4e2af6463689f97dd303360849108ba0968a836c517b7ca3411dc5788
- SSDEEP 3072:WFvLAdnnVYKlwMaofGPP7lzbwNZGCFG6IdSEnvrZq96S:EjKvKlz1CX
- TLSH
  T124D3280673F805E9E4BBD675CD324622DBB2BC684934C72F47A4D98A1F23321BD25726
- MD5 SHA1 SHA512 SSDEEP TLSH
Score

9^/10

adware defense_evasion discovery persistence privilege_escalation ransomware spyware trojan upx
- Renames multiple (6124) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Downloads MZ/PE file
- Manipulates Digital Signatures
  Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Contacts third-party web service commonly abused for C2
  Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Drops file in System32 directory
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
behavioral1