b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410

General

Target

b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Size

124KB
MD5

6bffe25fc46c0470e7c8d57cc2d3d899
SHA1

83af78e09725c51bec64a76a92017ed12fb51774
SHA256

b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410
SHA512

3258cfda3e50749c2c014833ec99bb6ebcc3b3cb22a147bbd517ab318ecedddefaee97609eb7dccea8668ab9107078c9e42c6175716b60d635abb47b109384e1
SSDEEP

3072:tIgFDoxY8Kprc9TPutmcsdANvCjLE2u+TZVFIXowPD1EzI//zP:agloxYhipqZDhCjg2NGLD1II//r

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1236	Explorer.EXE
468	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-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-2292972927-2705560509-2768824231-1000\\$a31e499c3c7c222a40fd7fc6e142514c\\n."	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$a31e499c3c7c222a40fd7fc6e142514c\\n."	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe

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

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both"	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-2292972927-2705560509-2768824231-1000\\$a31e499c3c7c222a40fd7fc6e142514c\\n."	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5839FCA9-774D-42A1-ACDA-D6A79037F57F}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-18\\$a31e499c3c7c222a40fd7fc6e142514c\\n."	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\clsid	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
468	services.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Token: SeDebugPrivilege	1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Token: SeDebugPrivilege	1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
Token: SeDebugPrivilege	468	services.exe
Token: SeBackupPrivilege	468	services.exe
Token: SeRestorePrivilege	468	services.exe
Token: SeSecurityPrivilege	468	services.exe
Token: SeTakeOwnershipPrivilege	468	services.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1236	1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe	13
PID 1788 wrote to memory of 1236	1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe	13
PID 1788 wrote to memory of 468	1788	b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe	2

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:468

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1236
- C:\Users\Admin\AppData\Local\Temp\b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe
  "C:\Users\Admin\AppData\Local\Temp\b2813d2dcb0e296ad76848560fad68058894ca1d89331ec5da580c6ac4d74410.exe"
  2⤵
  - Registers COM server for autorun
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1788

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\$a31e499c3c7c222a40fd7fc6e142514c\@

Filesize
2KB

MD5
382e1bb150c2c5874fc43ab5dc597598

SHA1
5ab808473df742ce5fc8ce5c2d185fd637fbea21

SHA256
163d2e8cb311b63007296fb322db0e3df518547807ec1fa989f27fd925af18c5

SHA512
015d0497100b679dc5fa7a7bab2e3427d1129f70893238ad3aa5917fbc8710ed72edce4b9a18da0c7518a8c6d1d2f3e840571698ce3b8b8802d9cb260aa8787e

Download Submit
C:\$Recycle.Bin\S-1-5-18\$a31e499c3c7c222a40fd7fc6e142514c\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
C:\$Recycle.Bin\S-1-5-21-2292972927-2705560509-2768824231-1000\$a31e499c3c7c222a40fd7fc6e142514c\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-18\$a31e499c3c7c222a40fd7fc6e142514c\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit
\$Recycle.Bin\S-1-5-21-2292972927-2705560509-2768824231-1000\$a31e499c3c7c222a40fd7fc6e142514c\n

Filesize
41KB

MD5
fb4e3236959152a057bc6b7603c538ef

SHA1
b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

SHA256
8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

SHA512
993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

Download Submit

Analysis

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