e566ee2189f830504af1cb787279111b7b2f3817a61a85bad8d9810701dd4877

Analysis

max time kernel
1789s
max time network
1791s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
16-07-2024 08:54

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General

Target

0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe
Size

131KB
MD5

b2fe08274cd765d5c3269bf6d560b5a2
SHA1

faa12ea8137072476ab6646f06cd74c1e0ced5be
SHA256

0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce
SHA512

c0cf56c0aa36b6bdd0bdb63e2c8175d5a4c1cec0de560b8e8f7a97aea01568b3393183c049a8702ed0c4ff96428e6811221a92c963e60f0ad879820210653339
SSDEEP

3072:ECmzzdcTtDRgEorpwbVLuP4HWV1oqCgQfBUnPy8L2VBBh:EbOTttgTrayP4HWV1oqCgQfBUPy8L2Vh

Score

9^/10

defense_evasion execution impact persistence ransomware

Malware Config

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Drops startup file 1 IoCs

Processes:

explorer.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4fb76407.exe explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4fb76407.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*fb76407 = "C:\\Users\\Admin\\AppData\\Roaming\\4fb76407.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\4fb7640 = "C:\\4fb76407\\4fb76407.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*fb7640 = "C:\\4fb76407\\4fb76407.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\4fb76407 = "C:\\Users\\Admin\\AppData\\Roaming\\4fb76407.exe"	explorer.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 ip-addr.es
5 myexternalip.com
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Direct Volume Access
T1006

Processes:

vssadmin.exe

pid process

2972 vssadmin.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exeexplorer.exe

pid process

2752 0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe
2584 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2624 vssvc.exe
Token: SeRestorePrivilege 2624 vssvc.exe
Token: SeAuditPrivilege 2624 vssvc.exe

flow	ioc
3	ip-addr.es
5	myexternalip.com

pid	process
2972	vssadmin.exe

pid	process
2752	0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe
2584	explorer.exe

description	pid	process
Token: SeBackupPrivilege	2624	vssvc.exe
Token: SeRestorePrivilege	2624	vssvc.exe
Token: SeAuditPrivilege	2624	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exeexplorer.exe

description	pid	process	target process
PID 2752 wrote to memory of 2584	2752	0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe	explorer.exe
PID 2752 wrote to memory of 2584	2752	0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe	explorer.exe
PID 2752 wrote to memory of 2584	2752	0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe	explorer.exe
PID 2752 wrote to memory of 2584	2752	0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe	explorer.exe
PID 2584 wrote to memory of 2876	2584	explorer.exe	svchost.exe
PID 2584 wrote to memory of 2876	2584	explorer.exe	svchost.exe
PID 2584 wrote to memory of 2876	2584	explorer.exe	svchost.exe
PID 2584 wrote to memory of 2876	2584	explorer.exe	svchost.exe
PID 2584 wrote to memory of 2972	2584	explorer.exe	vssadmin.exe
PID 2584 wrote to memory of 2972	2584	explorer.exe	vssadmin.exe
PID 2584 wrote to memory of 2972	2584	explorer.exe	vssadmin.exe
PID 2584 wrote to memory of 2972	2584	explorer.exe	vssadmin.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe
"C:\Users\Admin\AppData\Local\Temp\0715240d1af82c1cea262cde2a286b8b400805dc1f35f49422c7ee39e00f93ce.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Windows\syswow64\explorer.exe
  "C:\Windows\syswow64\explorer.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2584
- - C:\Windows\syswow64\svchost.exe
    -k netsvcs
    3⤵
    PID:2876
- - C:\Windows\syswow64\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:2972

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabD403.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarD4C2.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2584-0-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/2584-1-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/2876-6-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/2876-8-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

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