d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/08/2026, 01:19

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General

Target
d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe
Size 88KB
Sample260801-bpptysvcld
SHA256 d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e
MD5 3e5765596abff6429fd9566d0e1e0929
SHA1 f9421c78c5a69d6beb73fea0a507a1b8fb88893e
SHA512 14032375f42665d0cb2c594c3a62fe0af947819d22316e17b7ac7959ba2138534e8d61d1c0a5276db913cc1d3b4cc2008ef7306a3ecdd92166bdbe94bf7cde6b
SSDEEP 1536:v+gisi/OTW1bk3FwErVvHcT3BignpwLsO9NXw6dcQ:vIZ1bk1FVvHcTBO4O9fcQ
TLSH
T1B6934C01E4215172E06244F1ABBA56B9E168CFE133812EE7839CFCB51B758E27B7245F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2136	bot1.exe
6120	bot1.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 2096	2548	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe	90
PID 2136 set thread context of 6120	2136	bot1.exe	91

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2096-11-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/2096-12-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/2096-10-0x0000000000400000-0x0000000000423000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\system\bot1.exe	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe
File opened for modification	C:\Windows\system\bot1.exe	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe
File opened for modification	C:\Windows\system\RCX630.tmp	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bot1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2136	2548	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe	89
PID 2548 wrote to memory of 2096	2548	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe	90
PID 2548 wrote to memory of 2096	2548	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe	90
PID 2548 wrote to memory of 2096	2548	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe	90
PID 2548 wrote to memory of 2096	2548	d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe	90
PID 2136 wrote to memory of 6120	2136	bot1.exe	91
PID 2136 wrote to memory of 6120	2136	bot1.exe	91
PID 2136 wrote to memory of 6120	2136	bot1.exe	91
PID 2136 wrote to memory of 6120	2136	bot1.exe	91

C:\Users\Admin\AppData\Local\Temp\d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe
"C:\Users\Admin\AppData\Local\Temp\d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\system\bot1.exe
  "C:\Windows\system\bot1.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\system\bot1.exe
    C:\Windows\system\bot1.exe
    3⤵
    - Executes dropped EXE
    PID:6120
- C:\Users\Admin\AppData\Local\Temp\d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe
  "C:\Users\Admin\AppData\Local\Temp\d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe" -cure -offset=90112 -rcline="C:\Users\Admin\AppData\Local\Temp\d58ae749efbc1928393ec05cfb259b90d97dc62ac99e63a4fecb61d7e051598e.exe"
  2⤵
  PID:2096

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

bot1.exe

Path C:\Windows\system\bot1.exe
Size 88KB
SHA256 3e904c97c6c4ad31ea769b397ffd2b4a8dac726689beb6173174941552f4f18b
MD5 ef34152f8cb1bf335d091606854d9209
SHA1 c923793f96cef02ce0aefd2d6006f003340b6e2a
SHA512 4b9a7fe03862b868038f1f71e4cf8af9d369a02ad6715bb41b815d87861ed8aab0643e28580eb4b97a3634ac2b58b9cb50171b632b6b3b97b91ef3335e28b91e
SSDEEP 1536:n+gisi/OTW1bk3FwErVvHcT3BignpwLsO9NXw6dc6:nIZ1bk1FVvHcTBO4O9fc6
TLSH
T1F8933C01E4115173E06244F1ABBA56B9A168CFE133812EE7839CFCB51B758E27BB245F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2096-11-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/2096-12-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/2096-10-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/2136-26-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/2136-15-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/2548-0-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/2548-18-0x0000000000400000-0x0000000000418000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads