xworm | d99ad8a5da3079b1993cbe5141081257dc715d0b2c38e7b8a7231fdb0b51b2f1

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
30-09-2024 14:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Boostrapper.exe
Size

27.6MB
MD5

58c1371464d97d7d81cd2befb0591a25
SHA1

93e0a424730d228db4cf5a140c131a2368756e9e
SHA256

d99ad8a5da3079b1993cbe5141081257dc715d0b2c38e7b8a7231fdb0b51b2f1
SHA512

b71f9d86a120003337e0f45b117fe636a1fe2089b2a5042c10a5ce78a3ec2ced110737ff033c640206ffb6dae7fa8c319052df5fe49ffbe58c607366af1c1346
SSDEEP

786432:+hQiXgPQEErUlqsA3XTg52cP57vDACrv3FqbqS:KQE89Ed3XTg5l57v0eqbP

Score

10^/10

xworm discovery pyinstaller rat trojan upx

Malware Config

Extracted

Family

xworm

22.ip.gl.ply.gg:55064

Attributes

Install_directory
%AppData%
install_file
Console Windows App.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000500000001a4d5-59.dat	family_xworm
behavioral1/memory/2592-266-0x0000000000A10000-0x0000000000A28000-memory.dmp	family_xworm

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

Executes dropped EXE 6 IoCs

pid	Process
2672	.EXE
2688	NODEJS.EXE
2592	WINDOWS COMMAND APP.EXE
688	NODEJS.EXE
912	.EXE
1196	Process not Found

Loads dropped DLL 20 IoCs

pid	Process
1792	Boostrapper.exe
1792	Boostrapper.exe
1792	Boostrapper.exe
2688	NODEJS.EXE
688	NODEJS.EXE
688	NODEJS.EXE
688	NODEJS.EXE
688	NODEJS.EXE
688	NODEJS.EXE
688	NODEJS.EXE
688	NODEJS.EXE
2672	.EXE
912	.EXE
912	.EXE
912	.EXE
912	.EXE
912	.EXE
912	.EXE
912	.EXE
1196	Process not Found

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000400000001cff9-226.dat	upx
behavioral1/memory/688-238-0x000007FEF5790000-0x000007FEF5BF5000-memory.dmp	upx

Detects Pyinstaller 2 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x00080000000120fe-2.dat	pyinstaller
behavioral1/files/0x0007000000018bf3-14.dat	pyinstaller

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	Boostrapper.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
912	.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	WINDOWS COMMAND APP.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2672	1792	Boostrapper.exe	30
PID 1792 wrote to memory of 2672	1792	Boostrapper.exe	30
PID 1792 wrote to memory of 2672	1792	Boostrapper.exe	30
PID 1792 wrote to memory of 2672	1792	Boostrapper.exe	30
PID 1792 wrote to memory of 2688	1792	Boostrapper.exe	31
PID 1792 wrote to memory of 2688	1792	Boostrapper.exe	31
PID 1792 wrote to memory of 2688	1792	Boostrapper.exe	31
PID 1792 wrote to memory of 2688	1792	Boostrapper.exe	31
PID 1792 wrote to memory of 2592	1792	Boostrapper.exe	32
PID 1792 wrote to memory of 2592	1792	Boostrapper.exe	32
PID 1792 wrote to memory of 2592	1792	Boostrapper.exe	32
PID 1792 wrote to memory of 2592	1792	Boostrapper.exe	32
PID 2688 wrote to memory of 688	2688	NODEJS.EXE	33
PID 2688 wrote to memory of 688	2688	NODEJS.EXE	33
PID 2688 wrote to memory of 688	2688	NODEJS.EXE	33
PID 2672 wrote to memory of 912	2672	.EXE	34
PID 2672 wrote to memory of 912	2672	.EXE	34
PID 2672 wrote to memory of 912	2672	.EXE	34

C:\Users\Admin\AppData\Local\Temp\Boostrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Boostrapper.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\.EXE
  "C:\Users\Admin\AppData\Local\Temp\.EXE"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Users\Admin\AppData\Local\Temp\.EXE
    "C:\Users\Admin\AppData\Local\Temp\.EXE"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: GetForegroundWindowSpam
    PID:912
- C:\Users\Admin\AppData\Local\Temp\NODEJS.EXE
  "C:\Users\Admin\AppData\Local\Temp\NODEJS.EXE"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Users\Admin\AppData\Local\Temp\NODEJS.EXE
    "C:\Users\Admin\AppData\Local\Temp\NODEJS.EXE"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:688
- C:\Users\Admin\AppData\Local\Temp\WINDOWS COMMAND APP.EXE
  "C:\Users\Admin\AppData\Local\Temp\WINDOWS COMMAND APP.EXE"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\WINDOWS COMMAND APP.EXE

Filesize
74KB

MD5
95bb62cd9b3d3759b60bdfd096a693af

SHA1
4df2659b25273d9838615ad73165b372a655a6c3

SHA256
e93548c20f88e2ae4970a9bfdcb55d9b9e73b2e82ad8c2f0293e53473e892ef1

SHA512
ae3c1db7b3972c65674f91abd1812af0d2e2038e72bbe4c5468eb661932e14966896a9f59434611d1d85f8f0fb9bfcbf19f91d6293a63102fa6b047c19619883

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI26722\python310.dll

Filesize
4.2MB

MD5
384349987b60775d6fc3a6d202c3e1bd

SHA1
701cb80c55f859ad4a31c53aa744a00d61e467e5

SHA256
f281c2e252ed59dd96726dbb2de529a2b07b818e9cc3799d1ffa9883e3028ed8

SHA512
6bf3ef9f08f4fc07461b6ea8d9822568ad0a0f211e471b990f62c6713adb7b6be28b90f206a4ec0673b92bae99597d1c7785381e486f6091265c7df85ff0f9b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI26882\api-ms-win-core-file-l1-2-0.dll

Filesize
21KB

MD5
1c58526d681efe507deb8f1935c75487

SHA1
0e6d328faf3563f2aae029bc5f2272fb7a742672

SHA256
ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

SHA512
8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI26882\api-ms-win-core-file-l2-1-0.dll

Filesize
18KB

MD5
bfffa7117fd9b1622c66d949bac3f1d7

SHA1
402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

SHA256
1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

SHA512
b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI26882\api-ms-win-core-localization-l1-2-0.dll

Filesize
21KB

MD5
724223109e49cb01d61d63a8be926b8f

SHA1
072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

SHA256
4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

SHA512
19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI26882\python310.dll

Filesize
1.4MB

MD5
90d5b8ba675bbb23f01048712813c746

SHA1
f2906160f9fc2fa719fea7d37e145156742ea8a7

SHA256
3a7d497d779ff13082835834a1512b0c11185dd499ab86be830858e7f8aaeb3e

SHA512
872c2bf56c3fe180d9b4fb835a92e1dc188822e9d9183aab34b305408bb82fba1ead04711e8ad2bef1534e86cd49f2445d728851206d7899c1a7a83e5a62058e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI26882\ucrtbase.dll

Filesize
992KB

MD5
0e0bac3d1dcc1833eae4e3e4cf83c4ef

SHA1
4189f4459c54e69c6d3155a82524bda7549a75a6

SHA256
8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

SHA512
a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

Download Submit
\Users\Admin\AppData\Local\Temp\.EXE

Filesize
17.3MB

MD5
50e694bf81421e9c7f14096391e6f34e

SHA1
054fbd10312c721d808ea6a52a93b839a6c0f50a

SHA256
4e08ae229c3cf6555c2a5801e17e81ccf79f89796d9e4350d2693b378029672d

SHA512
06e65566262e8e2cb6a2953fae9bf9b3026ea61a159769a57bfdabdf0590d62002becea708bc1f646fad15bcc3170bfa59e1be744f7725af0c8a0ac1902f07cb

Download Submit
\Users\Admin\AppData\Local\Temp\NODEJS.EXE

Filesize
10.1MB

MD5
c2a9bdce2f9dc62483c9ae81e926d33b

SHA1
2c91163ac90e1d7546e900df517077177ad0ade9

SHA256
5d0de642cca499c3f353c21834366e7790b344ed477b419e4b2385aca8a5be89

SHA512
abfebc85c168a6c87a82db966c9fb8fef6519bc35fa1c56de7d42b85f9cb7a15442b573c536cd3f4de1e98dcdabf0a61d0990ab01178a33644d2a18ed4bbc8b5

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26882\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
21KB

MD5
517eb9e2cb671ae49f99173d7f7ce43f

SHA1
4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

SHA256
57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

SHA512
492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26882\api-ms-win-core-timezone-l1-1-0.dll

Filesize
21KB

MD5
d12403ee11359259ba2b0706e5e5111c

SHA1
03cc7827a30fd1dee38665c0cc993b4b533ac138

SHA256
f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

SHA512
9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

Download Submit
memory/688-238-0x000007FEF5790000-0x000007FEF5BF5000-memory.dmp

Filesize
4.4MB

Download
memory/2592-266-0x0000000000A10000-0x0000000000A28000-memory.dmp

Filesize
96KB

Download