2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2

General

Target

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
Size

184KB
MD5

44abccdd4046e163e582a71628cc83b9
SHA1

bd9a7231d1c6873cf53cfa062205d237fe58a236
SHA256

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2
SHA512

2d1c3bfec70480fb1268305716645a64cf8ddbd7e354ad88def35e518948c1f35e45835c51279b55a5207bd6833bea0a15d871ce0e150eadb7acae098d1fcee1
SSDEEP

3072:u8Dg+HWoYTzCh46Knvmb7/D26ytQlw/Lg5q69srijEIS3A:0rpz6LKnvmb7/D26yQlw/Lg5qosri/Sw

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exebiiimay.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	biiimay.exe

Executes dropped EXE 1 IoCs

Processes:

biiimay.exe

pid process

1116 biiimay.exe

pid	process
1116	biiimay.exe

Loads dropped DLL 2 IoCs

Processes:

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe

pid	process
1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe

Adds Run key to start application 2 TTPs 42 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

biiimay.exe2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /Y"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /y"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /l"	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /N"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /v"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /R"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /o"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /c"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /L"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /f"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /I"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /m"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /e"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /u"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /a"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /t"	biiimay.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /X"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /G"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /z"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /W"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /B"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /H"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /K"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /D"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /j"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /d"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /F"	biiimay.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /n"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /r"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /J"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /g"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /h"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /A"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /O"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /b"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /w"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /M"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /T"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /E"	biiimay.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\biiimay = "C:\\Users\\Admin\\biiimay.exe /i"	biiimay.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exebiiimay.exe

pid	process
1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe
1116	biiimay.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exebiiimay.exe

pid process

1644 2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
1116 biiimay.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe

description	pid	process	target process
PID 1644 wrote to memory of 1116	1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe	biiimay.exe
PID 1644 wrote to memory of 1116	1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe	biiimay.exe
PID 1644 wrote to memory of 1116	1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe	biiimay.exe
PID 1644 wrote to memory of 1116	1644	2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe	biiimay.exe

C:\Users\Admin\AppData\Local\Temp\2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe
"C:\Users\Admin\AppData\Local\Temp\2d8413b8e8eaeb757f75a29d5648fd5ff7799d1961bfbde5c8ca79bb5a9cf4a2.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1644

C:\Users\Admin\biiimay.exe
"C:\Users\Admin\biiimay.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

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\biiimay.exe

Filesize
184KB

MD5
22154760f7cbb340cf05d11e4233d8cb

SHA1
efb713bbbf3ee68f01cb0ab3ce16a23afe1f2e2c

SHA256
760b44a9c08a6ddfc54753984c7512f454d7144ac685ebe8ab5f1c6c92dbd230

SHA512
0c6e8e7e6b05ae8684fd7a2488779cdb5dbd451ec2e696fab9d6c005cb9d7cfa20aacb8423fbef6ef6590f2cd663e99968329c962ee7ebcf1d30eeea49816223

Download Submit
C:\Users\Admin\biiimay.exe

Filesize
184KB

MD5
22154760f7cbb340cf05d11e4233d8cb

SHA1
efb713bbbf3ee68f01cb0ab3ce16a23afe1f2e2c

SHA256
760b44a9c08a6ddfc54753984c7512f454d7144ac685ebe8ab5f1c6c92dbd230

SHA512
0c6e8e7e6b05ae8684fd7a2488779cdb5dbd451ec2e696fab9d6c005cb9d7cfa20aacb8423fbef6ef6590f2cd663e99968329c962ee7ebcf1d30eeea49816223

Download Submit
\Users\Admin\biiimay.exe

Filesize
184KB

MD5
22154760f7cbb340cf05d11e4233d8cb

SHA1
efb713bbbf3ee68f01cb0ab3ce16a23afe1f2e2c

SHA256
760b44a9c08a6ddfc54753984c7512f454d7144ac685ebe8ab5f1c6c92dbd230

SHA512
0c6e8e7e6b05ae8684fd7a2488779cdb5dbd451ec2e696fab9d6c005cb9d7cfa20aacb8423fbef6ef6590f2cd663e99968329c962ee7ebcf1d30eeea49816223

Download Submit
\Users\Admin\biiimay.exe

Filesize
184KB

MD5
22154760f7cbb340cf05d11e4233d8cb

SHA1
efb713bbbf3ee68f01cb0ab3ce16a23afe1f2e2c

SHA256
760b44a9c08a6ddfc54753984c7512f454d7144ac685ebe8ab5f1c6c92dbd230

SHA512
0c6e8e7e6b05ae8684fd7a2488779cdb5dbd451ec2e696fab9d6c005cb9d7cfa20aacb8423fbef6ef6590f2cd663e99968329c962ee7ebcf1d30eeea49816223

Download Submit
memory/1116-59-0x0000000000000000-mapping.dmp

Download
memory/1644-56-0x00000000763D1000-0x00000000763D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads