xworm | b39474a99eef726a32bd893db376ec01a3e597275c2ed6c943327349f7d0b746

Analysis

max time kernel
119s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 16:13

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General

Target

brinepcratfortest.exe
Size

236KB
MD5

e42b1a1c2cf1503da1d60fbd739bd8bc
SHA1

b1d9d2d3c7aa4397ca2452ed9dcee3efe79173c4
SHA256

b39474a99eef726a32bd893db376ec01a3e597275c2ed6c943327349f7d0b746
SHA512

fd73bbdc90b40c8b053e1ce2f7543faafe5e6f56031743a60a9e0f776d0e07ca61c95da78c16251d78f9f6129ea90d17f2c51abc3ae02915930ef96283e6ec84
SSDEEP

3072:HmD+PuJ9ub/p/DZEA9Okgg8SKfbzxcwg7es6/Vsb8VKTu549oJMfF/H9N3Ky9Nzx:HmSWibhCuUhcX7elbKTua9bfF/H9d9n

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:7000

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3116-1-0x00000000005D0000-0x0000000000610000-memory.dmp	family_xworm

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

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
23	ip-api.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133752969456223611"	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
844	chrome.exe
844	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
844	chrome.exe
844	chrome.exe
844	chrome.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	3116	brinepcratfortest.exe
Token: SeShutdownPrivilege	844	chrome.exe
Token: SeCreatePagefilePrivilege	844	chrome.exe
Token: SeShutdownPrivilege	844	chrome.exe
Token: SeCreatePagefilePrivilege	844	chrome.exe
Token: SeShutdownPrivilege	844	chrome.exe
Token: SeCreatePagefilePrivilege	844	chrome.exe
Token: SeShutdownPrivilege	844	chrome.exe
Token: SeCreatePagefilePrivilege	844	chrome.exe
Token: SeShutdownPrivilege	844	chrome.exe
Token: SeCreatePagefilePrivilege	844	chrome.exe

Suspicious use of FindShellTrayWindow 27 IoCs

pid	Process
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe
844	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 3444	844	chrome.exe	116
PID 844 wrote to memory of 3444	844	chrome.exe	116
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 2388	844	chrome.exe	117
PID 844 wrote to memory of 1804	844	chrome.exe	118
PID 844 wrote to memory of 1804	844	chrome.exe	118
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119
PID 844 wrote to memory of 5088	844	chrome.exe	119

C:\Users\Admin\AppData\Local\Temp\brinepcratfortest.exe
"C:\Users\Admin\AppData\Local\Temp\brinepcratfortest.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3116

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3984

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:844
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.123 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ffdb4d9cc40,0x7ffdb4d9cc4c,0x7ffdb4d9cc58
  2⤵
  PID:3444
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1828,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1824 /prefetch:2
  2⤵
  PID:2388
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2152,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2248 /prefetch:3
  2⤵
  PID:1804
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2260,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2336 /prefetch:8
  2⤵
  PID:5088
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3180,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3196 /prefetch:1
  2⤵
  PID:4932
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3344,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3444 /prefetch:1
  2⤵
  PID:2568
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=3684,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4632 /prefetch:1
  2⤵
  PID:3776
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4780,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3932 /prefetch:8
  2⤵
  PID:3560
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4612,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4804 /prefetch:8
  2⤵
  PID:3512
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4984,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4956 /prefetch:8
  2⤵
  PID:2988
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4896,i,17416036959435122829,7538835679344826920,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4832 /prefetch:8
  2⤵
  PID:3920

C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
1⤵
PID:1464

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
1⤵
PID:4580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState

Filesize
649B

MD5
aa0102dec874b65f75d1178274060160

SHA1
6c3af323ec350b9aee5e8c67d88282df86a6725e

SHA256
b6fd12cb5056ce00b1632ec849f1bc960dca73add6ffdb3410b2fa0a3a23920f

SHA512
c94a343f143d957fded1829169302c85d82ddb5d0924dd62aaca407b1659d349efe577ba23abafc42b5428496a7ba070ef2c5a6f3a03f5d5ed26f3c187f37a29

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\DawnCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

Filesize
2KB

MD5
c395cbc69a9b87afc620484653c261ae

SHA1
636ddf65300947d59e405e4c6a13fe51c1fb0051

SHA256
e2fca938ff9082770f5919ec41051203ec7c4101bd787423acd7c03ec2baa704

SHA512
ac81b0fff952da193de89da888b135a14e1436c694fe2c028f648beb4f10c17fb70ea509b82b72f3f347f34deca3856b6b01e8cbc3845ce57bda41051683f001

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

Filesize
356B

MD5
d737ff3e4a124e9024f1cf63e99a291c

SHA1
2787b461ebcfa9a7edafca91a9ae3d1492db519d

SHA256
949c14020f226258e146ad06bc0f69aebb3ad1c2fb3b29a2736c268dd7ae18c7

SHA512
db7f1c45ac4ea2963fcad1b98c85c2639cf1276865eabd1dda89764b977f10a80e29f1ec5d69a3174d904a66420a54dc8ca5d6a0f0f6e01c57eca4868da51808

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

Filesize
8KB

MD5
bd8dc38bbb72a9fdfc616bd413f46232

SHA1
9c36b1e866e089f4b5da4d11177cc49152df34c7

SHA256
f7edbd522cde1425742333c933a2b5b01ffd612c7d6101a776eeca531766b1bb

SHA512
c8b7df36468da84b1608385b472cc971695d1182b0c2dafa930a4f02b731f6f3fc7991d42445b5b1e8883c3cdba63e1e9a71ead7b5a0d5411190809d687167a8

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences

Filesize
15KB

MD5
b81b7a3942a9edd76385629ec8160acd

SHA1
6b5209d2d209e563f478b5856248f04242ffa187

SHA256
89017c53f6dd2cda51ad7378ade5f8694db413c807b3ec47c4f48ae4544360ad

SHA512
cd1dd4276e341c3552bffccdb1402822699f71e8bb8e833b548e11807b31eefbec57527a9b15a7c5341ce2f597ae7992fd7d1b693afac8713dd1a18b8dd7f927

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
230KB

MD5
2521bd76af914e7866e911c722f0d1b3

SHA1
0319099682258c93a52ed17888604ec5939b3c36

SHA256
ee9c45577bcba82f68b01aa33fdfc0a7407023963f347bd304b0670e5fa67008

SHA512
4d515d742d656a75ec4b63e20684bca9c8fa2d311ebe8d3464a026c3f48c95bd4e065d5f3d25a20d92c27a7d58a8dfbcc3eb77c62d5a5511cc0516d3b50f90a4

Download Submit
memory/3116-0-0x00007FFDB5643000-0x00007FFDB5645000-memory.dmp

Filesize
8KB

Download
memory/3116-3-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/3116-2-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/3116-1-0x00000000005D0000-0x0000000000610000-memory.dmp

Filesize
256KB

Download