3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74

General

Target

3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Size

173KB
MD5

5e49c21ee04cbcb3b1b3b1cff0e947eb
SHA1

49f617d79ebbde8adcbab5ad9216ee2c41fe5e66
SHA256

3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74
SHA512

8071416fc2594f4a996cef0038613f5da83e96eecec95ff336b6df3857cde389112545e262b97683799b0c500ac3484b61cad0e67619bb6a518311472e52d71e
SSDEEP

3072:wCx/G2TajiYb47TapvObqHgrJjgz3iN/lDnuWNVoarljuPzYoTP3VlVAAV8:w4/G14XaaqEdgbiNp/LoaJjwYozllVV

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1360	Explorer.EXE
464	services.exe

Registers COM server for autorun 1 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-4063495947-34355257-727531523-1000\\$d4e37f8e5af09b64e86d0830097e992e\\n."	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$d4e37f8e5af09b64e86d0830097e992e\\n."	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe

Deletes itself 1 IoCs

pid	Process
1372	cmd.exe

Unexpected DNS network traffic destination 9 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20
Destination IP	83.133.123.20

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	\systemroot\assembly\GAC_64\Desktop.ini	services.exe
File created	\systemroot\assembly\GAC_32\Desktop.ini	services.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1456 set thread context of 1372	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	26

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\clsid	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-4063495947-34355257-727531523-1000\\$d4e37f8e5af09b64e86d0830097e992e\\n."	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$d4e37f8e5af09b64e86d0830097e992e\\n."	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
464	services.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1360	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Token: SeDebugPrivilege	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Token: SeDebugPrivilege	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
Token: SeDebugPrivilege	464	services.exe
Token: SeBackupPrivilege	464	services.exe
Token: SeRestorePrivilege	464	services.exe
Token: SeSecurityPrivilege	464	services.exe
Token: SeTakeOwnershipPrivilege	464	services.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 1360	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	13
PID 1456 wrote to memory of 1360	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	13
PID 1456 wrote to memory of 464	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	2
PID 1456 wrote to memory of 1372	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	26
PID 1456 wrote to memory of 1372	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	26
PID 1456 wrote to memory of 1372	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	26
PID 1456 wrote to memory of 1372	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	26
PID 1456 wrote to memory of 1372	1456	3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe	26

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:464

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1360
- C:\Users\Admin\AppData\Local\Temp\3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe
  "C:\Users\Admin\AppData\Local\Temp\3bb7488b024edf7e43077d5cb0fd0a54383a1edcbe0a87b9179d07be43d5db74.exe"
  2⤵
  - Registers COM server for autorun
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1456
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - Deletes itself
    PID:1372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-18\$d4e37f8e5af09b64e86d0830097e992e\@

Filesize
2KB

MD5
4061d590f73ebe8869506fe7cd1dc08d

SHA1
0416cbc99af3894deee5ca7ae0828e3ed6ab1ad6

SHA256
206598cd182ea3ef2e83b9017a9cca31403e71a58ecf161b2e00cca3528c6aba

SHA512
17019510179341502bf9f157fa168243be61fe3a2ab1b94f32225ccfc2d77622e6dce7ef7c1f6e6832e834e6fd41f81e3150ce47f74f7e5c6c1c8016e59ca201

Download Submit
C:\$Recycle.Bin\S-1-5-18\$d4e37f8e5af09b64e86d0830097e992e\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
C:\$Recycle.Bin\S-1-5-21-4063495947-34355257-727531523-1000\$d4e37f8e5af09b64e86d0830097e992e\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-18\$d4e37f8e5af09b64e86d0830097e992e\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-21-4063495947-34355257-727531523-1000\$d4e37f8e5af09b64e86d0830097e992e\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
memory/1456-54-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1456-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1456-57-0x00000000003B0000-0x00000000003DF000-memory.dmp

Filesize
188KB

Download
memory/1456-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1456-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1456-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing