f59268ac976b85521c5e2279d14f57a8d6b3926d710b1853963db0cbd6c4d3c2

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
01/06/2026, 19:46

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General

Target
tmpi5b_iszj.exe
Size 188KB
Sample260601-yhcmdafx2l
SHA256 f59268ac976b85521c5e2279d14f57a8d6b3926d710b1853963db0cbd6c4d3c2
MD5 333e76fb70bd934d7360c555ac40a370
SHA1 3dbd4e9ecf56efc70515746b51af447191e32239
SHA512 7e8b9f101b9fa326ea68519da2991d1717a968d7ed46418efe331d1c4067d10edaec7746a2158c749276e1c8fbfe926500342037e74fbab4e3a4a711af0a77a5
SSDEEP 3072:o030XCIscLlj+cM45KzxKwrKdvZz+7DzVX4++RC7AUBTBqzqdTFzILwrK:oje/NGv1+T2PDUCmdTFzIc
TLSH
T15214122631C1C4B6F6E512B00DBBEBB1D6B75D0006028687A390EFB5AD3D663D92D386
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4456	tmpi5b_iszj.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
464	4456	WerFault.exe	83

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	tmpi5b_iszj.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 3464	4456	tmpi5b_iszj.exe	87

C:\Users\Admin\AppData\Local\Temp\tmpi5b_iszj.exe
"C:\Users\Admin\AppData\Local\Temp\tmpi5b_iszj.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\tmpi5b_iszj.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpi5b_iszj.exe"
  2⤵
  PID:3464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 920
  2⤵
  - Program crash
  PID:464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4456 -ip 4456
1⤵
PID:3312

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nss57C1.tmp\System.dll
Size 11KB
SHA256 904fd5481d72f4e03b01a455f848dedd095d0fb17e33608e0d849f5196fb6ff8
MD5 55a26d7800446f1373056064c64c3ce8
SHA1 80256857e9a0a9c8897923b717f3435295a76002
SHA512 04b8ab7a85c26f188c0a06f524488d6f2ac2884bf107c860c82e94ae12c3859f825133d78338fd2b594dfc48f7dc9888ae76fee786c6252a5c77c88755128a5b
SSDEEP 192:MPtkumJX7zBE2kGwfy9S9VkPsFQ1Mx1c:97O2k5q9wA1Mxa
TLSH
T1F2324C15031086F3E1D2853D682B39AB2FB969118AF04E438FB35952EE347C7AD79352
MD5 SHA1 SHA512 SSDEEP TLSH

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