a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff

General

Target

a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Size

137KB
MD5

91e66d1b95b3a5fe0a2d1b24a6954360
SHA1

efd5948f2f0e6150a95977a6b4b77b26f7c81a14
SHA256

a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff
SHA512

3731cf177145becd34536d06fe242b1f7cd8fb557d0a1b0a7527eec5eff7db435e13f263f3e15692f4bd0bf976e232f0630f7f50387e54fb940da523122998db
SSDEEP

3072:HKIx3w835x4UrstfBS1xgMhx/Mb6H1f51HUL8HVClTsdVKILrzcVlfnJGlYy/:HFQUeJID86HNLmTsdYILIRJGlY

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1256	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-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-3845472200-3839195424-595303356-1000\\$bb8ab67ad8382496fd4eead6952e3208\\n."	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$bb8ab67ad8382496fd4eead6952e3208\\n."	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe

Deletes itself 1 IoCs

pid	Process
1620	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 1624 set thread context of 1620	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	28

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\clsid	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-3845472200-3839195424-595303356-1000\\$bb8ab67ad8382496fd4eead6952e3208\\n."	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$bb8ab67ad8382496fd4eead6952e3208\\n."	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
464	services.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Token: SeDebugPrivilege	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
Token: SeDebugPrivilege	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.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
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 1256	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	11
PID 1624 wrote to memory of 1256	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	11
PID 1624 wrote to memory of 464	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	2
PID 1624 wrote to memory of 1620	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	28
PID 1624 wrote to memory of 1620	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	28
PID 1624 wrote to memory of 1620	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	28
PID 1624 wrote to memory of 1620	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	28
PID 1624 wrote to memory of 1620	1624	a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe	28

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:1256
- C:\Users\Admin\AppData\Local\Temp\a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.exe
  "C:\Users\Admin\AppData\Local\Temp\a65b2ea41d7753aaa5c6f105a54a59a985dafabc142a8f52cce7466123b02cff.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:1624
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - Deletes itself
    PID:1620

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\$bb8ab67ad8382496fd4eead6952e3208\@

Filesize
2KB

MD5
2bc52647987d212c95a0e97c860594de

SHA1
3adbc23ab1e9a53a4cb386d12ea944c8c3f175ca

SHA256
fd05320f451041fb0e11fe9e88a485504c99f31e28af6106d412c6cb40fe3497

SHA512
c4ee00139978910498280bd5cb6ad3a6ae64e9dd321ab018d35e9775b14aa5fa869be9c1bfecd1df0b567e959ad9d954ce81ac8c811fb0c2e30d5720d161ae1b

Download Submit
C:\$Recycle.Bin\S-1-5-18\$bb8ab67ad8382496fd4eead6952e3208\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
C:\$Recycle.Bin\S-1-5-21-3845472200-3839195424-595303356-1000\$bb8ab67ad8382496fd4eead6952e3208\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-18\$bb8ab67ad8382496fd4eead6952e3208\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-21-3845472200-3839195424-595303356-1000\$bb8ab67ad8382496fd4eead6952e3208\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
memory/1624-54-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download
memory/1624-55-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1624-62-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1624-64-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

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