xworm | 910351824ec9121d841b498baca5f57acc383f20e6ab755e5d353a9d281c4fb2

Analysis

max time kernel
234s
max time network
305s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22/06/2024, 14:36

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General

Target
LabyMоd4 (1).exe
Size 560KB
Sample240622-ryptbawcrr
SHA256 910351824ec9121d841b498baca5f57acc383f20e6ab755e5d353a9d281c4fb2
MD5 2ae96ec953ccf1e0334f53b423a0f9c5
SHA1 ad213f9355f9eba4b1c93f9134d0cae98508c350
SHA512 9dd0157e71086db20d54741ddd304ffc688d85ff01558c3660050a5471ec7c5933590e7fc79cf40147dc866fb3d3c3c7cacec6140ca2d1ff15313686850fb686
SSDEEP 12288:B2rL+p6X35aAXuxGM7bGNMOddnSIXTHUhI:c735aZMzVjUS
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

restaurant-equation.gl.at.ply.gg:23887

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023252-8.dat	family_xworm
behavioral2/memory/2600-17-0x0000000000BC0000-0x0000000000BF6000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4788	powershell.exe
2532	powershell.exe
4248	powershell.exe
548	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	LabyMоd4 (1).exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2600	XClient.exe
4944	ihdvap.exe

Loads dropped DLL 1 IoCs

pid	Process
2600	XClient.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
844	icacls.exe

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
7	ip-api.com

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings	LabyMоd4 (1).exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4788	powershell.exe
4788	powershell.exe
2532	powershell.exe
2532	powershell.exe
4248	powershell.exe
4248	powershell.exe
548	powershell.exe
548	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	XClient.exe
Token: SeDebugPrivilege	4788	powershell.exe
Token: SeDebugPrivilege	2532	powershell.exe
Token: SeDebugPrivilege	4248	powershell.exe
Token: SeDebugPrivilege	548	powershell.exe
Token: SeDebugPrivilege	2600	XClient.exe
Token: 33	2024	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2024	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5068	javaw.exe
5068	javaw.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 5068	4108	LabyMоd4 (1).exe	90
PID 4108 wrote to memory of 5068	4108	LabyMоd4 (1).exe	90
PID 4108 wrote to memory of 2600	4108	LabyMоd4 (1).exe	91
PID 4108 wrote to memory of 2600	4108	LabyMоd4 (1).exe	91
PID 5068 wrote to memory of 844	5068	javaw.exe	93
PID 5068 wrote to memory of 844	5068	javaw.exe	93
PID 2600 wrote to memory of 4788	2600	XClient.exe	95
PID 2600 wrote to memory of 4788	2600	XClient.exe	95
PID 2600 wrote to memory of 2532	2600	XClient.exe	97
PID 2600 wrote to memory of 2532	2600	XClient.exe	97
PID 2600 wrote to memory of 4248	2600	XClient.exe	99
PID 2600 wrote to memory of 4248	2600	XClient.exe	99
PID 2600 wrote to memory of 548	2600	XClient.exe	101
PID 2600 wrote to memory of 548	2600	XClient.exe	101
PID 2600 wrote to memory of 4944	2600	XClient.exe	111
PID 2600 wrote to memory of 4944	2600	XClient.exe	111
PID 2600 wrote to memory of 4944	2600	XClient.exe	111

C:\Users\Admin\AppData\Local\Temp\LabyMоd4 (1).exe
"C:\Users\Admin\AppData\Local\Temp\LabyMоd4 (1).exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Program Files\Java\jre-1.8\bin\javaw.exe
  "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\labymod4-installer.jar"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:844
- C:\Users\Admin\AppData\Local\Temp\XClient.exe
  "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4788
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2532
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4248
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:548
- - C:\Users\Admin\AppData\Local\Temp\ihdvap.exe
    "C:\Users\Admin\AppData\Local\Temp\ihdvap.exe"
    3⤵
    - Executes dropped EXE
    PID:4944

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1412 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:548

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4ec 0x4e0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
MD5 cadef9abd087803c630df65264a6c81c
SHA1 babbf3636c347c8727c35f3eef2ee643dbcc4bd2
SHA512 7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 a4fe2be2c449e841f6a12d32114672b097fc1058b6f2971a03521220a0228745
MD5 f0a41fc9c1123bb127e55ecc66c8f052
SHA1 57152411758fa3df2623cc8a4df6d9fea73652f8
SHA512 e3e967adac361ddcf8240cf641f3e77eacfefc61dec725b8ae12e6a94f7d2ebd937fb9eb3cd068a0b3d4306e163dc87773b322bc2dd8b7df93b8103d0e99a900
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 444084a5dd84f5aeaa084a27da160ea4501574fbb27da9d7aab3c6c5b3269eb6
MD5 17e45724e81fad9d4f4eda74fe6b349e
SHA1 0ef309ee5638e1055c0f0fe7cd693a5643a1e4a3
SHA512 c1b0dd77c2ae9c15843b3bac8de6874609ebeffa5e10e552b364340c51bde690ac563c132dbc14f93e68d3a7939ea840fa687eb1bd603d646acf88a3430b6e45
MD5 SHA1 SHA512

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XClient.exe

Path C:\Users\Admin\AppData\Local\Temp\XClient.exe
Size 190KB
SHA256 8b721aab9de7fcd5eda8ad61eb2461b8ad4354142629f9589663874ff42f70ef
MD5 f5cd88548481bd61561698c34fb5b94c
SHA1 26ccddacd3d767b5b495ab84db5aed5c1eca72bd
SHA512 295982830cd04b560c35bbdb6bdfc3a343aec8f7a8289c3650cfc1665e788b4aa877b0c8041ee035b2d6304e317623ca2dde52b5cdd5511b932de4a2150419e9
SSDEEP 3072:TV2PkAbq918xe6yNOW4hq5tG8ZOewvNIF:T4/bm18QtHoHN
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_r4emr0va.jhc.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r4emr0va.jhc.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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ihdvap.exe

Path C:\Users\Admin\AppData\Local\Temp\ihdvap.exe
Size 7.4MB
SHA256 f91c14c328544a2d4cc216c7c2115283806fa3201d40bd3c7c5d79dccd025b09
MD5 3c3d1168fc2724c551837a505ea4374e
SHA1 86c913a12067fd2c1bbc31fb64a5b5d056175841
SHA512 0f181c9753a3f55e4f4a434ea3e972e00b46fb7319d95a4b7a5c7d09888537df4a8fc4c2c5e0232f96b441727e45a595eed42721ff8c7799302e4d3f13156a8e
SSDEEP 98304:RWaPi95brhiYYIOyWLFA/pr2LFsoYe91+BZoNIr7wqscUByK1mn2UH+UMUIZHdrq:RV6QqOyjr2LF3Ye6YmnwqdU142UM7Vq
MD5 SHA1 SHA512 SSDEEP

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labymod4-installer.jar

Path C:\Users\Admin\AppData\Local\Temp\labymod4-installer.jar
Size 341KB
SHA256 23ddcafd86f95231752b6f2ad7b9532c01c7043fb795ea4faaa3d09ba5ab35bb
MD5 65b10a02e94334034adb7251a1d521e2
SHA1 05b4bb293d461d0d2943b0b3209f4cc0afba35b2
SHA512 8fcc63df10dc17b9648945a81574a786bfa01db69e63e889dd18e0be0c60c0ee9d222b240d644982e759f79f139a9b573f9d0b03c025e558c15eaebb5fcc596d
SSDEEP 6144:T0k/E2KZiYY/lHbaZi9bBxi32ftuTE7qUeoWouABS5Ba7fHFOA:TC2Zl7GiB432oTLo5f9OA
MD5 SHA1 SHA512 SSDEEP

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tmp892B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp892B.tmp
Size 100KB
SHA256 555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc
MD5 1b942faa8e8b1008a8c3c1004ba57349
SHA1 cd99977f6c1819b12b33240b784ca816dfe2cb91
SHA512 5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43
SSDEEP 3072:WakLA3LC2FY+EdzYZHAx+dqRN51hdJFxtZV9l5hhJxZ9N1FZV9NFWOaSek8Kle/:WakL320zYZHpMXM/
MD5 SHA1 SHA512 SSDEEP

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memory/2600-233-0x00000000013B0000-0x00000000013C0000-memory.dmp

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memory/2600-401-0x000000001D430000-0x000000001D4BE000-memory.dmp

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memory/2600-16-0x00007FF9708D3000-0x00007FF9708D5000-memory.dmp

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memory/2600-17-0x0000000000BC0000-0x0000000000BF6000-memory.dmp

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memory/2600-390-0x000000001C040000-0x000000001C07A000-memory.dmp

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memory/2600-23-0x00000000013B0000-0x00000000013C0000-memory.dmp

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memory/2600-231-0x000000001BA50000-0x000000001BA5C000-memory.dmp

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memory/2600-222-0x00007FF9708D3000-0x00007FF9708D5000-memory.dmp

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memory/4788-32-0x000001BF5B5C0000-0x000001BF5B5E2000-memory.dmp

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memory/4944-410-0x0000000005270000-0x000000000527A000-memory.dmp

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memory/4944-409-0x00000000052D0000-0x0000000005362000-memory.dmp

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memory/4944-408-0x00000000057E0000-0x0000000005D84000-memory.dmp

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memory/4944-407-0x0000000000110000-0x0000000000870000-memory.dmp

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memory/5068-144-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-232-0x0000017DEB6A0000-0x0000017DEB910000-memory.dmp

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memory/5068-20-0x0000017DEB6A0000-0x0000017DEB910000-memory.dmp

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memory/5068-389-0x0000017DEB6A0000-0x0000017DEB910000-memory.dmp

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memory/5068-72-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-30-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-45-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-98-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-148-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-157-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-154-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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memory/5068-147-0x0000017DE9DD0000-0x0000017DE9DD1000-memory.dmp

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