latrodectus | 2114aefe4d9460c04028d45b0f41ca9c65cea365727fda0fd2a885222c87db3c

Analysis

max time kernel
638s
max time network
617s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 15:00

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General

Target

check.exe
Size

2.3MB
MD5

1f3d6134710193f7d4d1e864d5e6b362
SHA1

538a93f3103e461906f783210c08cb1a4708a438
SHA256

2114aefe4d9460c04028d45b0f41ca9c65cea365727fda0fd2a885222c87db3c
SHA512

85a9d0906d57b276ae8eedc6f7a3a8b109c7c68e1e7805f5ab3a5fa26c09e80cdf786e71e1e6f7d03479d7510393aa8710ae969847285900e7b5fbd44343fffc
SSDEEP

49152:YMLtHPldWWLafLAUCweyFI0ZBAFCGLcRe2xTIYLEJL:jLaMUzRe2M

Score

10^/10

latrodectus loader

Malware Config

Signatures

Detects Latrodectus 7 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/memory/2764-0-0x0000000001B40000-0x0000000001B56000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2764-2-0x0000000001B40000-0x0000000001B56000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2764-1-0x0000000001B40000-0x0000000001B56000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2764-8-0x0000000001B40000-0x0000000001B56000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2904-9-0x0000000000190000-0x00000000001A6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2904-10-0x0000000000190000-0x00000000001A6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2904-12-0x0000000000190000-0x00000000001A6000-memory.dmp	family_latrodectus_1_4

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

Deletes itself 1 IoCs

pid	Process
2764	check.exe

Executes dropped EXE 2 IoCs

pid	Process
2904	Update_2b4d1064.exe
1520	Update_2b4d1064.exe

Loads dropped DLL 1 IoCs

pid	Process
2764	check.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2764	check.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2904	2764	check.exe	31
PID 2764 wrote to memory of 2904	2764	check.exe	31
PID 2764 wrote to memory of 2904	2764	check.exe	31
PID 2112 wrote to memory of 1520	2112	taskeng.exe	34
PID 2112 wrote to memory of 1520	2112	taskeng.exe	34
PID 2112 wrote to memory of 1520	2112	taskeng.exe	34

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:\Users\Admin\AppData\Local\Temp\check.exe
"C:\Users\Admin\AppData\Local\Temp\check.exe"
1⤵
- Deletes itself
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Roaming\Custom_update\Update_2b4d1064.exe
  "C:\Users\Admin\AppData\Roaming\Custom_update\Update_2b4d1064.exe"
  2⤵
  - Executes dropped EXE
  PID:2904

C:\Windows\system32\taskeng.exe
taskeng.exe {1BE6F175-5400-48FA-AF36-BB3652801EFC} S-1-5-21-3450744190-3404161390-554719085-1000:PDIZKVQX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Roaming\Custom_update\Update_2b4d1064.exe
  C:\Users\Admin\AppData\Roaming\Custom_update\Update_2b4d1064.exe
  2⤵
  - Executes dropped EXE
  PID:1520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Roaming\Custom_update\Update_2b4d1064.exe

Filesize
2.3MB

MD5
1f3d6134710193f7d4d1e864d5e6b362

SHA1
538a93f3103e461906f783210c08cb1a4708a438

SHA256
2114aefe4d9460c04028d45b0f41ca9c65cea365727fda0fd2a885222c87db3c

SHA512
85a9d0906d57b276ae8eedc6f7a3a8b109c7c68e1e7805f5ab3a5fa26c09e80cdf786e71e1e6f7d03479d7510393aa8710ae969847285900e7b5fbd44343fffc

Download Submit
memory/2764-0-0x0000000001B40000-0x0000000001B56000-memory.dmp

Filesize
88KB

Download
memory/2764-2-0x0000000001B40000-0x0000000001B56000-memory.dmp

Filesize
88KB

Download
memory/2764-1-0x0000000001B40000-0x0000000001B56000-memory.dmp

Filesize
88KB

Download
memory/2764-8-0x0000000001B40000-0x0000000001B56000-memory.dmp

Filesize
88KB

Download
memory/2764-6-0x0000000140000000-0x0000000140254000-memory.dmp

Filesize
2.3MB

Download
memory/2904-9-0x0000000000190000-0x00000000001A6000-memory.dmp

Filesize
88KB

Download
memory/2904-10-0x0000000000190000-0x00000000001A6000-memory.dmp

Filesize
88KB

Download
memory/2904-12-0x0000000000190000-0x00000000001A6000-memory.dmp

Filesize
88KB

Download