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 3 IoCs

resource	yara_rule
behavioral1/memory/3048-14-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/3048-16-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/3048-18-0x0000000000400000-0x0000000000410000-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
1992	Countee.exe

Loads dropped DLL 2 IoCs

pid	Process
2484	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe
3048	RegSvcs.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00080000000161f6-4.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 3048	1992	Countee.exe	32

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
3048	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1992	Countee.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3048	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3048	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 1992	2484	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	31
PID 2484 wrote to memory of 1992	2484	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	31
PID 2484 wrote to memory of 1992	2484	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	31
PID 2484 wrote to memory of 1992	2484	daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe	31
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32
PID 1992 wrote to memory of 3048	1992	Countee.exe	32

C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe
"C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- 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:1992
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d.exe"
    3⤵
    - Drops startup file
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3048

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

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

Filesize
1.0MB

MD5
468e18a1e46996a9e12aeac76580c6ed

SHA1
4529b55ad5c142e320ca8e0916b175c61f7e8a92

SHA256
daae736c8f04197fdab7aca6a9d79492272b03b0b0fb7a9f844810c2737ad84d

SHA512
bc6faa2a4bff36301c411896a6271c70c7eada5bfdffb7456440a0e499f6467c27532484c1dcb0e23a7c1aa43376fcea697d77315c1293840733c1ca763def85

Download Submit
\Users\Admin\AppData\Roaming\XClient.exe

Filesize
44KB

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
memory/1992-12-0x0000000000B10000-0x0000000000F10000-memory.dmp

Filesize
4.0MB

Download
memory/2484-2-0x0000000000B90000-0x0000000000F90000-memory.dmp

Filesize
4.0MB

Download
memory/3048-14-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3048-16-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3048-18-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3048-19-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/3048-25-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/3048-26-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/3048-27-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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