valleyrat_s2 | 7ea6eb25a6dd947a8cd28328903596cef8b6894f909a282dac596e8dd25903ba

Analysis

max time kernel
165s
max time network
166s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/07/2026, 00:23

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General

Target
boy.exe
Size 85KB
Sample260730-apla4awamb
SHA256 7ea6eb25a6dd947a8cd28328903596cef8b6894f909a282dac596e8dd25903ba
MD5 d1f4981818e78eca13ccd360196d70fb
SHA1 68a01393b9b4d14e01a4059ad9324023ac741d58
SHA512 fc909b673339a0068e108ede0acda7dd461c68a9f1abee5db745f04837519c136d75c6bb44985b15c714d285ffda985e1eab7d23ae181eef444709813b954190
SSDEEP 1536:ByKJEtANm3o9+YgIwqxumbuF7p0UwLYv3Z/sWPcdhdnS983Y68trg7:XJNmY9+CumbuF7p0Uf3Ghdng83Yha
TLSH
T12A837C4778D1C8B1E9721E3054A0DAB19E3FB9215E64CDAB3354067E0F306D1AE39E7A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery valleyrat_s2

Malware Config

Extracted

Family

valleyrat_s2

Version

45.203.220.93:8886
45.203.220.93:6668
45.203.220.93:80

Attributes

campaign_date
2026. 6.30

Signatures

Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
backdoor valleyrat_s2

Detects ValleyRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/3216-7-0x0000000003A60000-0x0000000003AA1000-memory.dmp	family_valleyrat_stage_2_v2
behavioral2/memory/3216-8-0x0000000003BF0000-0x0000000003C37000-memory.dmp	family_valleyrat_stage_2_v2
behavioral2/memory/3216-9-0x0000000003BF0000-0x0000000003C37000-memory.dmp	family_valleyrat_stage_2_v2
behavioral2/memory/3216-10-0x0000000003BF0000-0x0000000003C37000-memory.dmp	family_valleyrat_stage_2_v2
behavioral2/memory/3216-11-0x0000000003BF0000-0x0000000003C37000-memory.dmp	family_valleyrat_stage_2_v2
behavioral2/memory/3216-12-0x0000000003BF0000-0x0000000003C37000-memory.dmp	family_valleyrat_stage_2_v2
behavioral2/memory/3216-15-0x0000000003BF0000-0x0000000003C37000-memory.dmp	family_valleyrat_stage_2_v2

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\M:	boy.exe
File opened (read-only)	\??\N:	boy.exe
File opened (read-only)	\??\P:	boy.exe
File opened (read-only)	\??\X:	boy.exe
File opened (read-only)	\??\D:	boy.exe
File opened (read-only)	\??\L:	boy.exe
File opened (read-only)	\??\R:	boy.exe
File opened (read-only)	\??\S:	boy.exe
File opened (read-only)	\??\U:	boy.exe
File opened (read-only)	\??\V:	boy.exe
File opened (read-only)	\??\W:	boy.exe
File opened (read-only)	\??\Q:	boy.exe
File opened (read-only)	\??\B:	boy.exe
File opened (read-only)	\??\I:	boy.exe
File opened (read-only)	\??\K:	boy.exe
File opened (read-only)	\??\O:	boy.exe
File opened (read-only)	\??\T:	boy.exe
File opened (read-only)	\??\Y:	boy.exe
File opened (read-only)	\??\Z:	boy.exe
File opened (read-only)	\??\G:	boy.exe
File opened (read-only)	\??\J:	boy.exe
File opened (read-only)	\??\H:	boy.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	boy.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe
3216	boy.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3216	boy.exe

C:\Users\Admin\AppData\Local\Temp\boy.exe
"C:\Users\Admin\AppData\Local\Temp\boy.exe"
1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3216

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3216-0-0x0000000001890000-0x0000000001891000-memory.dmp

Download

memory/3216-1-0x00000000030F0000-0x0000000003171000-memory.dmp

Download

memory/3216-3-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-2-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-4-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-5-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-7-0x0000000003A60000-0x0000000003AA1000-memory.dmp

Download

memory/3216-6-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-8-0x0000000003BF0000-0x0000000003C37000-memory.dmp

Download

memory/3216-9-0x0000000003BF0000-0x0000000003C37000-memory.dmp

Download

memory/3216-10-0x0000000003BF0000-0x0000000003C37000-memory.dmp

Download

memory/3216-11-0x0000000003BF0000-0x0000000003C37000-memory.dmp

Download

memory/3216-12-0x0000000003BF0000-0x0000000003C37000-memory.dmp

Download

memory/3216-13-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-14-0x00000000018D0000-0x00000000018F1000-memory.dmp

Download

memory/3216-15-0x0000000003BF0000-0x0000000003C37000-memory.dmp

Download