latrodectus | 86e376774660522aeafc1182dfd1ea7af602bee39de78c44ffbfa5a4ab109cec

Resubmissions

08-04-2024 21:40

240408-1h8qxsfh61 10

08-04-2024 20:47

240408-zkt5wabe38 10

Analysis

max time kernel
598s
max time network
608s
platform
windows10-2004_x64
resource
win10v2004-20240226-uk
resource tags

arch:x64arch:x86image:win10v2004-20240226-uklocale:uk-uaos:windows10-2004-x64systemwindows
submitted
08-04-2024 21:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

UPDATE-HSYEYDBB.html.lnk
Size

1KB
MD5

564896c159f0d7c086d0d5bc966959d3
SHA1

b63dadc4d961995a77a9c183c809321e5564da60
SHA256

db03a34684feab7475862080f59d4d99b32c74d3a152a53b257fd1a443e8ee77
SHA512

fb9ca2821f15f9946770fb29dfcd3724a868af27b998cd0191135ef11e38b7d5a1c8214fb37e178b1ed68fe6d3ae828acf43d9f5243d753ba58f5361f6c8398f

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://mazdakrichest.com/live/

https://riverhasus.com/live/

Signatures

Latrodectus loader
Latrodectus is a loader written in C++.
loader latrodectus

Detect larodectus Loader variant 1 3 IoCs

loader

resource	yara_rule
behavioral1/memory/3612-1-0x0000021B9D760000-0x0000021B9D773000-memory.dmp	family_latrodectus_v1
behavioral1/memory/1840-11-0x00000253B28D0000-0x00000253B28E3000-memory.dmp	family_latrodectus_v1
behavioral1/memory/1840-16-0x00000253B28D0000-0x00000253B28E3000-memory.dmp	family_latrodectus_v1

Blocklisted process makes network request 64 IoCs

flow	pid	Process
50	1840	rundll32.exe
52	1840	rundll32.exe
53	1840	rundll32.exe
54	1840	rundll32.exe
55	1840	rundll32.exe
56	1840	rundll32.exe
57	1840	rundll32.exe
58	1840	rundll32.exe
59	1840	rundll32.exe
60	1840	rundll32.exe
61	1840	rundll32.exe
62	1840	rundll32.exe
63	1840	rundll32.exe
64	1840	rundll32.exe
65	1840	rundll32.exe
66	1840	rundll32.exe
67	1840	rundll32.exe
68	1840	rundll32.exe
69	1840	rundll32.exe
70	1840	rundll32.exe
71	1840	rundll32.exe
72	1840	rundll32.exe
73	1840	rundll32.exe
74	1840	rundll32.exe
75	1840	rundll32.exe
76	1840	rundll32.exe
77	1840	rundll32.exe
78	1840	rundll32.exe
79	1840	rundll32.exe
80	1840	rundll32.exe
81	1840	rundll32.exe
82	1840	rundll32.exe
83	1840	rundll32.exe
84	1840	rundll32.exe
85	1840	rundll32.exe
86	1840	rundll32.exe
87	1840	rundll32.exe
88	1840	rundll32.exe
89	1840	rundll32.exe
90	1840	rundll32.exe
91	1840	rundll32.exe
92	1840	rundll32.exe
93	1840	rundll32.exe
94	1840	rundll32.exe
95	1840	rundll32.exe
96	1840	rundll32.exe
97	1840	rundll32.exe
98	1840	rundll32.exe
99	1840	rundll32.exe
100	1840	rundll32.exe
101	1840	rundll32.exe
102	1840	rundll32.exe
103	1840	rundll32.exe
104	1840	rundll32.exe
105	1840	rundll32.exe
106	1840	rundll32.exe
107	1840	rundll32.exe
108	1840	rundll32.exe
109	1840	rundll32.exe
110	1840	rundll32.exe
111	1840	rundll32.exe
112	1840	rundll32.exe
113	1840	rundll32.exe
114	1840	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1840	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3612	rundll32.exe
3612	rundll32.exe
3612	rundll32.exe
3612	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 3612	1772	cmd.exe	85
PID 1772 wrote to memory of 3612	1772	cmd.exe	85
PID 3612 wrote to memory of 1840	3612	rundll32.exe	89
PID 3612 wrote to memory of 1840	3612	rundll32.exe	89

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\UPDATE-HSYEYDBB.html.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" version1.dll, scab
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_660c9e20.dll", scab
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:1840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Custom_update\Update_660c9e20.dll

Filesize
1.4MB

MD5
f834dfc1861cd6361f34496c3bbafe66

SHA1
a983e82d009901310c8a3255c4b4e3a02d556fa7

SHA256
e99f3517a36a9f7a55335699cfb4d84d08b042d47146119156f7f3bab580b4d7

SHA512
088a6170c948ddb2c2b0cf2431ae61688201ef5bc3f1af217a58bf18b26dd9e0ab7ee082f822e736d0467f62e33bf71b806127eb998bed8e739c1e441ac05e00

Download Submit
memory/1840-11-0x00000253B28D0000-0x00000253B28E3000-memory.dmp

Filesize
76KB

Download
memory/1840-16-0x00000253B28D0000-0x00000253B28E3000-memory.dmp

Filesize
76KB

Download
memory/3612-0-0x0000021B9D750000-0x0000021B9D754000-memory.dmp

Filesize
16KB

Download
memory/3612-1-0x0000021B9D760000-0x0000021B9D773000-memory.dmp

Filesize
76KB

Download
memory/3612-7-0x0000000180000000-0x000000018016F000-memory.dmp

Filesize
1.4MB

Download