xworm | 12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9

General

Target

12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
Size

315KB
MD5

e16acddcf30e48f1a412228269ec7ee0
SHA1

c431b49d1a8c7154a90fff36f97ff28497d1e690
SHA256

12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9
SHA512

2894d2e44307386aa7c23ae0093a600247b2bc1d5f0342e48fdce05a52adbe4419c64b6de15105ba942130176078773d4e091a212763151f02f9871b62a42e16
SSDEEP

3072:ktHIcvIdsE+iSmphsQvPb0dwG3birtHcn0UwGqtUH//F+oYoQN:kx131M5GOdtUHMaQ

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

185.7.214.108:4411

185.7.214.54:4411

aes.plain

Signatures

Detect Xworm Payload 7 IoCs

resource	yara_rule
behavioral1/files/0x0007000000016cd3-14.dat	family_xworm
behavioral1/memory/2280-15-0x0000000000220000-0x0000000000230000-memory.dmp	family_xworm
behavioral1/memory/2828-21-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2828-23-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2828-27-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2828-31-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2828-29-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2280 set thread context of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33

System Location Discovery: System Language Discovery 1 TTPs 4 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	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	MSBuild.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2760	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	30
PID 2280 wrote to memory of 2760	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	30
PID 2280 wrote to memory of 2760	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	30
PID 2280 wrote to memory of 2760	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	30
PID 2760 wrote to memory of 2820	2760	csc.exe	32
PID 2760 wrote to memory of 2820	2760	csc.exe	32
PID 2760 wrote to memory of 2820	2760	csc.exe	32
PID 2760 wrote to memory of 2820	2760	csc.exe	32
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33
PID 2280 wrote to memory of 2828	2280	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	33

C:\Users\Admin\AppData\Local\Temp\12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
"C:\Users\Admin\AppData\Local\Temp\12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\abvcuze0\abvcuze0.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES5FFB.tmp" "c:\Users\Admin\AppData\Local\Temp\abvcuze0\CSC1F7361467CC94AEABB1C44738D35BFBC.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2820
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2828

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\Temp\RES5FFB.tmp

Filesize
1KB

MD5
0beac84b56732c05f399fe21b0fa71d7

SHA1
d31b870bbd0aeabc0ebc9e6150b08299da50628c

SHA256
2659b6af05a66ce22d752a1fb61e4169787383b3b81c4c3d109fe943c80a272e

SHA512
c51049c72ceb83600b6ee7adf0161441a637565332766f9dae2070ac2a184aa5e5fff1d4c0d0c8e5eb5c6e0320655a69ea60660de8b507a1b722138e9f8038a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\abvcuze0\abvcuze0.dll

Filesize
41KB

MD5
1828fac02ea5f39cb1adc92b58599b1c

SHA1
a4b3e37a71893b71ee738b1fe1ecc5f589d7839b

SHA256
a14fd2889a2b347b0beb4b0bafb27d823facd4d3ce35a66733a794ce47276fa7

SHA512
9c27380491ff3fb28372446d64af6563598de809b113d823a8c1b5fb1a650088ec4311bacc1f4f23a27187c09054b84e4b1213c1b843e6685a7e1cf9e3784ede

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\abvcuze0\CSC1F7361467CC94AEABB1C44738D35BFBC.TMP

Filesize
652B

MD5
51aa2de4b6a00b2e63c639c265041aa9

SHA1
69d44ec3ba3cdc1883fba48f30037136bbdfe31e

SHA256
a8856dc958184d5facb7760945ede54e3d299897c20246e8151c80e368e19468

SHA512
3d83385fba9ef623117ff9d6270f7e1f7b576b358a8255e44fb2ec14dd7fd859fab575039b294ad2e1dfb6c24c93dc472e670eb1129154c957e24a8ffdd8f6d2

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\abvcuze0\abvcuze0.0.cs

Filesize
101KB

MD5
fcb83d623452e1cafbc3b0ad5b3b5b73

SHA1
abc26af231584f50ca2ae6de25d4c4764eaf7a9f

SHA256
d4e8ff661b3125613fadc869675cf7c01909b4d64d06344ab2b632ab7ba1e4cc

SHA512
41a233e55bca274c0c3d2fe1c6474306cb17f273bc70e7b1224603b91d17314eb3709c2cbddf2e30d5caafb4b94eb18e8b7ea7d11b19612bf1b5fa80fa9dd3d8

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\abvcuze0\abvcuze0.cmdline

Filesize
204B

MD5
61647b1a085373552a1dd14f4bd70138

SHA1
44e63c1b846242ac2f4ed31c20af793d9154402a

SHA256
8ca5ac01431fe12b8ea48e421e5b6a1ab2b63f0ed8523308abaf01f5f2169b54

SHA512
64087a3ffb84d9a57e1b085afda938ec189aed9b5a4ee655e817445c1a3a8a3150acef0cc9b1367fc5006e65697c0eb936592b18a20075bf2cc79f4bad0c7169

Download Submit
memory/2280-32-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-5-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-1-0x0000000000A60000-0x0000000000AB4000-memory.dmp

Filesize
336KB

Download
memory/2280-15-0x0000000000220000-0x0000000000230000-memory.dmp

Filesize
64KB

Download
memory/2280-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2828-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-17-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-27-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-25-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-23-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-21-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-31-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-29-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2828-33-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2828-34-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2828-35-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2828-36-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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