4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484

General

Target

4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Size

146KB
MD5

9362b263a36c8c690119403b6d51ac1f
SHA1

df8866e6c3a92ef2e4069bce5774763fb45cd4f7
SHA256

4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484
SHA512

040603036b911521f39159faf8824c88a3548cf9e11360dbf6ba03151fc3a134ea93e9dd00bcb3007765a412fe2f7fda6b92c9213ba976f9e7c6e99dcd9cff5d
SSDEEP

3072:UHR6AbOqyQFye3WINKtckna/cOvAoc6BOdc/ycCqD96:UHsASqtgIwtckenc6kFcCy9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1260	Explorer.EXE
464	services.exe

Registers COM server for autorun 1 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-999675638-2867687379-27515722-1000\\$f545a6cb63874d75375b4ac5befd06b3\\n."	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$f545a6cb63874d75375b4ac5befd06b3\\n."	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe

Deletes itself 1 IoCs

pid	Process
1092	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_32\Desktop.ini	services.exe
File created	\systemroot\assembly\GAC_64\Desktop.ini	services.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 1092	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	27

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\clsid	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-999675638-2867687379-27515722-1000\\$f545a6cb63874d75375b4ac5befd06b3\\n."	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$f545a6cb63874d75375b4ac5befd06b3\\n."	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
464	services.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Token: SeDebugPrivilege	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Token: SeDebugPrivilege	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
Token: SeDebugPrivilege	464	services.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1260	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	9
PID 1672 wrote to memory of 1260	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	9
PID 1672 wrote to memory of 464	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	2
PID 1672 wrote to memory of 1092	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	27
PID 1672 wrote to memory of 1092	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	27
PID 1672 wrote to memory of 1092	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	27
PID 1672 wrote to memory of 1092	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	27
PID 1672 wrote to memory of 1092	1672	4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe	27

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 use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1260
- C:\Users\Admin\AppData\Local\Temp\4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.exe
  "C:\Users\Admin\AppData\Local\Temp\4bf8895262d944b7149564c752af2c62f559f9dd5f34f54ea6cdd80e86afe484.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:1672
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - Deletes itself
    PID:1092

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

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Downloads

C:\$Recycle.Bin\S-1-5-18\$f545a6cb63874d75375b4ac5befd06b3\@

Filesize
2KB

MD5
f5e8833bcb919d392e07306ff28c8b3d

SHA1
92c4f9d9877567c1dd81547d59af1eb9c1aae4db

SHA256
5d86e8f968bb2ccc46262bb8a801c3f9980532cabb707c18a699fbcf8e377de3

SHA512
8686b2b36ab79155cff78924e8243c631dfe67d8e1fb1a341463967403f8bf2fea48b9fd6eac6c93108ae2eb4719c01c9fbbf3d4dbf5f2b5459267ec1efac9ce

Download Submit
C:\$Recycle.Bin\S-1-5-18\$f545a6cb63874d75375b4ac5befd06b3\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
C:\$Recycle.Bin\S-1-5-21-999675638-2867687379-27515722-1000\$f545a6cb63874d75375b4ac5befd06b3\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-18\$f545a6cb63874d75375b4ac5befd06b3\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-21-999675638-2867687379-27515722-1000\$f545a6cb63874d75375b4ac5befd06b3\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
memory/1672-54-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1672-55-0x0000000000220000-0x000000000025E000-memory.dmp

Filesize
248KB

Download
memory/1672-56-0x0000000000220000-0x000000000025E000-memory.dmp

Filesize
248KB

Download
memory/1672-62-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1672-64-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1672-65-0x0000000000220000-0x000000000025E000-memory.dmp

Filesize
248KB

Download

Analysis

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