bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4

General

Target

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
Size

272KB
MD5

baf3947937254c5d2112d879bc059994
SHA1

828d6783742e3b6f7b0142b116621a53e848c061
SHA256

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4
SHA512

58acd6c8df3f3e4bb43995f1cb210707efe3b8d0d21e65390798e0e0ab5612632ef06d0dbafa6b19e928cd87f0dbb7d036c9617a42a56aed59a83bba098ac165
SSDEEP

6144:nAz71iSbYGYBdo0FiU2sauK9ZZLjhwXvY2vuRC+4:nAzp7bxYHo036BfhwXQ2mRCV

Score

9^/10

persistence ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Drops startup file 1 IoCs

Processes:

explorer.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dfb5f6db.exe explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dfb5f6db.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\dfb5f6d = "C:\\dfb5f6db\\dfb5f6db.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*fb5f6d = "C:\\dfb5f6db\\dfb5f6db.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\dfb5f6db = "C:\\Users\\Admin\\AppData\\Roaming\\dfb5f6db.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*fb5f6db = "C:\\Users\\Admin\\AppData\\Roaming\\dfb5f6db.exe"	explorer.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-addr.es
4 myexternalip.com
6 myexternalip.com

flow	ioc
2	ip-addr.es
4	myexternalip.com
6	myexternalip.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe

description	pid	process	target process
PID 1080 set thread context of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

1528 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe

pid process

1080 bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exeexplorer.exe

pid process

1956 bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
1584 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1560 vssvc.exe
Token: SeRestorePrivilege 1560 vssvc.exe
Token: SeAuditPrivilege 1560 vssvc.exe

pid	process
1528	vssadmin.exe

pid	process
1956	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
1584	explorer.exe

description	pid	process
Token: SeBackupPrivilege	1560	vssvc.exe
Token: SeRestorePrivilege	1560	vssvc.exe
Token: SeAuditPrivilege	1560	vssvc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe

pid	process
1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exebb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exeexplorer.exe

description	pid	process	target process
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1080 wrote to memory of 1956	1080	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
PID 1956 wrote to memory of 1584	1956	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	explorer.exe
PID 1956 wrote to memory of 1584	1956	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	explorer.exe
PID 1956 wrote to memory of 1584	1956	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	explorer.exe
PID 1956 wrote to memory of 1584	1956	bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe	explorer.exe
PID 1584 wrote to memory of 1552	1584	explorer.exe	svchost.exe
PID 1584 wrote to memory of 1552	1584	explorer.exe	svchost.exe
PID 1584 wrote to memory of 1552	1584	explorer.exe	svchost.exe
PID 1584 wrote to memory of 1552	1584	explorer.exe	svchost.exe
PID 1584 wrote to memory of 1528	1584	explorer.exe	vssadmin.exe
PID 1584 wrote to memory of 1528	1584	explorer.exe	vssadmin.exe
PID 1584 wrote to memory of 1528	1584	explorer.exe	vssadmin.exe
PID 1584 wrote to memory of 1528	1584	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
"C:\Users\Admin\AppData\Local\Temp\bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1080

C:\Users\Admin\AppData\Local\Temp\bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
C:\Users\Admin\AppData\Local\Temp\bb5b1ea5a20e3368473fc5e777b0589bf6b52c568d17c584653b3f4698dd67a4.exe
2⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\syswow64\explorer.exe
"C:\Windows\syswow64\explorer.exe"
3⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1584

C:\Windows\syswow64\svchost.exe
-k netsvcs
4⤵
PID:1552

C:\Windows\syswow64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1528

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1560

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/1080-54-0x00000000758C1000-0x00000000758C3000-memory.dmp

Filesize
8KB

Download
memory/1080-61-0x0000000000290000-0x0000000000294000-memory.dmp

Filesize
16KB

Download
memory/1528-74-0x0000000000000000-mapping.dmp

Download
memory/1552-77-0x00000000000C0000-0x00000000000E5000-memory.dmp

Filesize
148KB

Download
memory/1552-76-0x00000000000C0000-0x00000000000E5000-memory.dmp

Filesize
148KB

Download
memory/1552-73-0x0000000000000000-mapping.dmp

Download
memory/1584-68-0x0000000000000000-mapping.dmp

Download
memory/1584-72-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/1584-71-0x0000000074F51000-0x0000000074F53000-memory.dmp

Filesize
8KB

Download
memory/1956-60-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1956-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1956-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1956-65-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1956-66-0x0000000000416E70-mapping.dmp

Download
memory/1956-64-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1956-62-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1956-58-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1956-57-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1956-55-0x00000000001B0000-0x00000000002AA000-memory.dmp

Filesize
1000KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads