xworm | daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d

General

Target

daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe
Size

1.0MB
MD5

468e18a1e46996a9e12aeac76580c6ed
SHA1

4529b55ad5c142e320ca8e0916b175c61f7e8a92
SHA256

daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d
SHA512

bc6faa2a4bff36301c411896a6271c70c7eada5bfdffb7456440a0e499f6467c27532484c1dcb0e23a7c1aa43376fcea697d77315c1293840733c1ca763def85
SSDEEP

24576:wqDEvCTbMWu7rQYlBQcBiT6rprG8a374rnT9exfxOkl:wTvC/MTQYxsWR7a37YT9exfxh

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

173.205.83.196:3210

Mutex

jJqPmV7YRG8bldRA

Attributes

Install_directory
%AppData%
install_file
XClient.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/220-12-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Countee.vbs	Countee.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	RegSvcs.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	RegSvcs.exe

Executes dropped EXE 1 IoCs

pid	Process
4844	Countee.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0009000000023c7c-5.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4844 set thread context of 220	4844	Countee.exe	89

System Location Discovery: System Language Discovery 1 TTPs 3 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	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Countee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
220	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4844	Countee.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	220	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
220	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 4844	2912	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	86
PID 2912 wrote to memory of 4844	2912	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	86
PID 2912 wrote to memory of 4844	2912	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	86
PID 4844 wrote to memory of 220	4844	Countee.exe	89
PID 4844 wrote to memory of 220	4844	Countee.exe	89
PID 4844 wrote to memory of 220	4844	Countee.exe	89
PID 4844 wrote to memory of 220	4844	Countee.exe	89

C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe
"C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\semispheroidal\Countee.exe
  "C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe"
    3⤵
    - Drops startup file
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\semispheroidal\Countee.exe

Filesize
1.0MB

MD5
468e18a1e46996a9e12aeac76580c6ed

SHA1
4529b55ad5c142e320ca8e0916b175c61f7e8a92

SHA256
daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d

SHA512
bc6faa2a4bff36301c411896a6271c70c7eada5bfdffb7456440a0e499f6467c27532484c1dcb0e23a7c1aa43376fcea697d77315c1293840733c1ca763def85

Download Submit
memory/220-21-0x00000000062D0000-0x0000000006362000-memory.dmp

Filesize
584KB

Download
memory/220-12-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/220-13-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

Filesize
4KB

Download
memory/220-14-0x0000000005790000-0x000000000582C000-memory.dmp

Filesize
624KB

Download
memory/220-20-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/220-19-0x0000000006540000-0x0000000006AE4000-memory.dmp

Filesize
5.6MB

Download
memory/220-22-0x00000000062A0000-0x00000000062AA000-memory.dmp

Filesize
40KB

Download
memory/220-23-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

Filesize
4KB

Download
memory/220-24-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2912-2-0x0000000000CB0000-0x00000000010B0000-memory.dmp

Filesize
4.0MB

Download
memory/4844-10-0x0000000001630000-0x0000000001A30000-memory.dmp

Filesize
4.0MB

Download

Analysis

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