f57d00c4b273dcd3b8d5fa73c63d26a861dba2d4d240c555c8e78c928a24f4a2

Analysis

max time kernel
148s
max time network
116s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/07/2026, 14:30

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General

Target
tmp9xx191cc.exe
Size 3.5MB
Sample260710-rt67ssbs6m
SHA256 f57d00c4b273dcd3b8d5fa73c63d26a861dba2d4d240c555c8e78c928a24f4a2
MD5 7740f8a2a0353a6973eb98d883f426d4
SHA1 37a33fc1463b4568bc7783d629a64d02bb2d40ba
SHA512 b87862da5438dd0fce29252504fbf79cac0ad049ca2f3ed86f74121f6eaca782f5d2acae32b4f526478319b12c9fa929857cd51c61ebc5443e864b35fd2e127d
SSDEEP 49152:vi+RGR+18/UhF1BBFWE5XHkob6SNwRDe2Ij+DJ1vknJADm3VJmc/py9QW5iKG11k:BB35jLKm3VI9Q0jhv
TLSH
T17A066C70D351B065D1A7C430CED60EF464A1703B52366D1F1BC5E82A25FBEA1ABAD3A3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

collection discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
852	DCRCVDrv.sys

Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\java updater = "cmd /c start \"\" /D \"C:\\ProgramData\\java updater\" tmp9xx191cc.exe"	tmp9xx191cc.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4492 set thread context of 2640	4492	tmp9xx191cc.exe	89

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	jsc.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	jsc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	jsc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2640	jsc.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
808	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	jsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2640	jsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4492 wrote to memory of 2640	4492	tmp9xx191cc.exe	89
PID 4492 wrote to memory of 2640	4492	tmp9xx191cc.exe	89
PID 4492 wrote to memory of 2640	4492	tmp9xx191cc.exe	89
PID 4492 wrote to memory of 2640	4492	tmp9xx191cc.exe	89
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93
PID 2640 wrote to memory of 4352	2640	jsc.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

C:\Users\Admin\AppData\Local\Temp\tmp9xx191cc.exe
"C:\Users\Admin\AppData\Local\Temp\tmp9xx191cc.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4492
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  PID:2640
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe" all --output-path "C:\Users\Admin\AppData\Local\Temp\ba50289e8b0d3b7756e4a28aeda1bfb5"
    3⤵
    PID:4352

C:\Windows\Temp\DCRCVDrv.sys
C:\Windows\Temp\DCRCVDrv.sys
1⤵
- Executes dropped EXE
PID:852

C:\Windows\system32\cmd.exe
"cmd /c start "" /D "C:\ProgramData\java updater" tmp9xx191cc.exe"
1⤵
PID:4080

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

DCRCVDrv.sys

Path C:\Windows\Temp\DCRCVDrv.sys
Size 137KB
SHA256 87e8d39db624f37d3e77aedf487a2dfd197f71a4730ea74f4e7a4341deaec2ff
MD5 567c158ee0858f8e941d4ab7a6c18dbc
SHA1 47d922b0fd5d704025d14ef98ded46e74830a423
SHA512 f976cb8e9a2f0fc769e2e4345d18e1e9f01fdb1c4303eb20d94b625467e60ce20dd120e77a96d9ba498361dd6dc0066535404cb22cf99fc49607d1f35eaed2ab
SSDEEP 3072:6pEFTp46B6ETbeP/ItLK9Di8/4BQaeJzP:Y8Tp46B6EOLgBQX
TLSH
T10CD33A12A36550A4E977E2B8C6B65263EFF37861133547CF03608A654F23BE4B93A3D1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/852-2-0x0000000000010000-0x000000000003D000-memory.dmp

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memory/2640-8-0x00000000053A0000-0x0000000005406000-memory.dmp

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memory/2640-5-0x0000000074242000-0x0000000074243000-memory.dmp

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memory/2640-6-0x0000000005870000-0x0000000005E2A000-memory.dmp

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memory/2640-7-0x0000000074230000-0x00000000749EC000-memory.dmp

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memory/2640-4-0x0000000000400000-0x0000000000466000-memory.dmp

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memory/2640-9-0x00000000060D0000-0x0000000006162000-memory.dmp

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memory/2640-10-0x0000000006610000-0x000000000661A000-memory.dmp

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memory/2640-13-0x0000000007630000-0x00000000077F2000-memory.dmp

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memory/2640-14-0x0000000007800000-0x0000000007876000-memory.dmp

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memory/2640-15-0x0000000074242000-0x0000000074243000-memory.dmp

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memory/2640-16-0x0000000074230000-0x00000000749EC000-memory.dmp

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memory/4352-12-0x0000023D720F0000-0x0000023D72100000-memory.dmp

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