xtremerat | 77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-11-2024 14:12

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General

Target

77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
Size

62KB
MD5

b485e46d22d35ca5736de271bcd05462
SHA1

ba5cb6434ee5102556e2199bb2fc2c93f3b70082
SHA256

77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b
SHA512

543cc1fa543fdedd50f344e7bafb86c841f15ae5a36dd714cb69b4a4cb76fd4583261073dd0a379c713cf77ffdb93909d6292ffbff684eb98044030b52c91029
SSDEEP

1536:b8qS+OLPjNW71rGYDAWeotvXllSTeoJ9s4hxajeNbFF2t:bk+OL7NW7zEvotvX/6egu4KUbP2t

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2540-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2540-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2372-17-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2372-19-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat
Xtremerat family
xtremerat
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 8 IoCs

description	pid	Process	procid_target
PID 2528 set thread context of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 set thread context of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 set thread context of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 set thread context of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 set thread context of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 set thread context of 1700	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	42
PID 2528 set thread context of 2960	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	44
PID 2528 set thread context of 2036	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	46

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2540-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2540-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2540-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2540-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2540-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2540-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2372-17-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2372-19-0x0000000010000000-0x000000001004D000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 10 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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2528 wrote to memory of 2540	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	30
PID 2540 wrote to memory of 2372	2540	vbc.exe	31
PID 2540 wrote to memory of 2372	2540	vbc.exe	31
PID 2540 wrote to memory of 2372	2540	vbc.exe	31
PID 2540 wrote to memory of 2372	2540	vbc.exe	31
PID 2540 wrote to memory of 2372	2540	vbc.exe	31
PID 2540 wrote to memory of 2316	2540	vbc.exe	32
PID 2540 wrote to memory of 2316	2540	vbc.exe	32
PID 2540 wrote to memory of 2316	2540	vbc.exe	32
PID 2540 wrote to memory of 2316	2540	vbc.exe	32
PID 2540 wrote to memory of 2316	2540	vbc.exe	32
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2528 wrote to memory of 2732	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	34
PID 2732 wrote to memory of 2640	2732	vbc.exe	35
PID 2732 wrote to memory of 2640	2732	vbc.exe	35
PID 2732 wrote to memory of 2640	2732	vbc.exe	35
PID 2732 wrote to memory of 2640	2732	vbc.exe	35
PID 2732 wrote to memory of 2640	2732	vbc.exe	35
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2528 wrote to memory of 2600	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	36
PID 2600 wrote to memory of 2324	2600	vbc.exe	37
PID 2600 wrote to memory of 2324	2600	vbc.exe	37
PID 2600 wrote to memory of 2324	2600	vbc.exe	37
PID 2600 wrote to memory of 2324	2600	vbc.exe	37
PID 2600 wrote to memory of 2324	2600	vbc.exe	37
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 2528 wrote to memory of 592	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	38
PID 592 wrote to memory of 1528	592	vbc.exe	39
PID 592 wrote to memory of 1528	592	vbc.exe	39
PID 592 wrote to memory of 1528	592	vbc.exe	39
PID 592 wrote to memory of 1528	592	vbc.exe	39
PID 592 wrote to memory of 1528	592	vbc.exe	39
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40
PID 2528 wrote to memory of 348	2528	77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe	40

C:\Users\Admin\AppData\Local\Temp\77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe
"C:\Users\Admin\AppData\Local\Temp\77de8b45e2883165fc3ed4d5dd351a1c7134ef343e10e488266e26bfc0e4284b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2372
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2316
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2640
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2324
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:592
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1528
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:348
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2836
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1700
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2268
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2960
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1116
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2036
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Replay Monitor

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Downloads

memory/2372-19-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2372-17-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2528-0-0x0000000074C61000-0x0000000074C62000-memory.dmp

Filesize
4KB

Download
memory/2528-1-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/2528-18-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/2528-2-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2540-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2540-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2540-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2540-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2540-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2540-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download