strrat | 00b6a46542f80c34df42fe3d9e369eb7c39566e902e9ac92238dc90166446a6c

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
13-02-2023 11:51

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General

Target

HK SEMI CORPORATION CO,,Ltd.js
Size

4.6MB
MD5

3cbcc574b184d5719059b21b9786bbf0
SHA1

9ed29659b5b54cdf60cf2b9495224aec1a261e67
SHA256

00b6a46542f80c34df42fe3d9e369eb7c39566e902e9ac92238dc90166446a6c
SHA512

68d5c2e058f28c9f1760f40af8fce6b0f786a0ed4aa99cc86df227415c66688e6de1264929d937ed20d111d7551b7ec0944791a5753045ce821167b09ddac9c7
SSDEEP

3072:2GRbdyiMKBDjY086keLyVXiQp7IayQ6Q/27SSi8s2ag6N8TiwzccqhWM307KIiWW:R06HV4dbI+eeHbESp

Score

10^/10

strrat vjw0rm persistence stealer trojan worm

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 12 IoCs

flow	pid	Process
10	972	WScript.exe
13	972	WScript.exe
15	972	WScript.exe
20	972	WScript.exe
21	972	WScript.exe
22	972	WScript.exe
24	972	WScript.exe
25	972	WScript.exe
26	972	WScript.exe
28	972	WScript.exe
29	972	WScript.exe
30	972	WScript.exe

Drops startup file 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SrdqnzeXbF.js	WScript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zgwdeoqq.txt	java.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SrdqnzeXbF.js	WScript.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\zgwdeoqq = "\"C:\\Users\\Admin\\AppData\\Roaming\\zgwdeoqq.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zgwdeoqq = "\"C:\\Users\\Admin\\AppData\\Roaming\\zgwdeoqq.txt\""	java.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
18	ip-api.com

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1084	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	272	WMIC.exe
Token: SeSecurityPrivilege	272	WMIC.exe
Token: SeTakeOwnershipPrivilege	272	WMIC.exe
Token: SeLoadDriverPrivilege	272	WMIC.exe
Token: SeSystemProfilePrivilege	272	WMIC.exe
Token: SeSystemtimePrivilege	272	WMIC.exe
Token: SeProfSingleProcessPrivilege	272	WMIC.exe
Token: SeIncBasePriorityPrivilege	272	WMIC.exe
Token: SeCreatePagefilePrivilege	272	WMIC.exe
Token: SeBackupPrivilege	272	WMIC.exe
Token: SeRestorePrivilege	272	WMIC.exe
Token: SeShutdownPrivilege	272	WMIC.exe
Token: SeDebugPrivilege	272	WMIC.exe
Token: SeSystemEnvironmentPrivilege	272	WMIC.exe
Token: SeRemoteShutdownPrivilege	272	WMIC.exe
Token: SeUndockPrivilege	272	WMIC.exe
Token: SeManageVolumePrivilege	272	WMIC.exe
Token: 33	272	WMIC.exe
Token: 34	272	WMIC.exe
Token: 35	272	WMIC.exe
Token: SeIncreaseQuotaPrivilege	272	WMIC.exe
Token: SeSecurityPrivilege	272	WMIC.exe
Token: SeTakeOwnershipPrivilege	272	WMIC.exe
Token: SeLoadDriverPrivilege	272	WMIC.exe
Token: SeSystemProfilePrivilege	272	WMIC.exe
Token: SeSystemtimePrivilege	272	WMIC.exe
Token: SeProfSingleProcessPrivilege	272	WMIC.exe
Token: SeIncBasePriorityPrivilege	272	WMIC.exe
Token: SeCreatePagefilePrivilege	272	WMIC.exe
Token: SeBackupPrivilege	272	WMIC.exe
Token: SeRestorePrivilege	272	WMIC.exe
Token: SeShutdownPrivilege	272	WMIC.exe
Token: SeDebugPrivilege	272	WMIC.exe
Token: SeSystemEnvironmentPrivilege	272	WMIC.exe
Token: SeRemoteShutdownPrivilege	272	WMIC.exe
Token: SeUndockPrivilege	272	WMIC.exe
Token: SeManageVolumePrivilege	272	WMIC.exe
Token: 33	272	WMIC.exe
Token: 34	272	WMIC.exe
Token: 35	272	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1856	WMIC.exe
Token: SeSecurityPrivilege	1856	WMIC.exe
Token: SeTakeOwnershipPrivilege	1856	WMIC.exe
Token: SeLoadDriverPrivilege	1856	WMIC.exe
Token: SeSystemProfilePrivilege	1856	WMIC.exe
Token: SeSystemtimePrivilege	1856	WMIC.exe
Token: SeProfSingleProcessPrivilege	1856	WMIC.exe
Token: SeIncBasePriorityPrivilege	1856	WMIC.exe
Token: SeCreatePagefilePrivilege	1856	WMIC.exe
Token: SeBackupPrivilege	1856	WMIC.exe
Token: SeRestorePrivilege	1856	WMIC.exe
Token: SeShutdownPrivilege	1856	WMIC.exe
Token: SeDebugPrivilege	1856	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1856	WMIC.exe
Token: SeRemoteShutdownPrivilege	1856	WMIC.exe
Token: SeUndockPrivilege	1856	WMIC.exe
Token: SeManageVolumePrivilege	1856	WMIC.exe
Token: 33	1856	WMIC.exe
Token: 34	1856	WMIC.exe
Token: 35	1856	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1856	WMIC.exe
Token: SeSecurityPrivilege	1856	WMIC.exe
Token: SeTakeOwnershipPrivilege	1856	WMIC.exe
Token: SeLoadDriverPrivilege	1856	WMIC.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 972	1976	wscript.exe	28
PID 1976 wrote to memory of 972	1976	wscript.exe	28
PID 1976 wrote to memory of 972	1976	wscript.exe	28
PID 1976 wrote to memory of 608	1976	wscript.exe	29
PID 1976 wrote to memory of 608	1976	wscript.exe	29
PID 1976 wrote to memory of 608	1976	wscript.exe	29
PID 608 wrote to memory of 1464	608	javaw.exe	33
PID 608 wrote to memory of 1464	608	javaw.exe	33
PID 608 wrote to memory of 1464	608	javaw.exe	33
PID 1464 wrote to memory of 944	1464	java.exe	35
PID 1464 wrote to memory of 944	1464	java.exe	35
PID 1464 wrote to memory of 944	1464	java.exe	35
PID 1464 wrote to memory of 1976	1464	java.exe	36
PID 1464 wrote to memory of 1976	1464	java.exe	36
PID 1464 wrote to memory of 1976	1464	java.exe	36
PID 944 wrote to memory of 1084	944	cmd.exe	39
PID 944 wrote to memory of 1084	944	cmd.exe	39
PID 944 wrote to memory of 1084	944	cmd.exe	39
PID 1976 wrote to memory of 268	1976	java.exe	42
PID 1976 wrote to memory of 268	1976	java.exe	42
PID 1976 wrote to memory of 268	1976	java.exe	42
PID 268 wrote to memory of 272	268	cmd.exe	40
PID 268 wrote to memory of 272	268	cmd.exe	40
PID 268 wrote to memory of 272	268	cmd.exe	40
PID 1976 wrote to memory of 468	1976	java.exe	43
PID 1976 wrote to memory of 468	1976	java.exe	43
PID 1976 wrote to memory of 468	1976	java.exe	43
PID 468 wrote to memory of 1856	468	cmd.exe	44
PID 468 wrote to memory of 1856	468	cmd.exe	44
PID 468 wrote to memory of 1856	468	cmd.exe	44
PID 1976 wrote to memory of 1340	1976	java.exe	47
PID 1976 wrote to memory of 1340	1976	java.exe	47
PID 1976 wrote to memory of 1340	1976	java.exe	47
PID 1340 wrote to memory of 1696	1340	cmd.exe	48
PID 1340 wrote to memory of 1696	1340	cmd.exe	48
PID 1340 wrote to memory of 1696	1340	cmd.exe	48
PID 1976 wrote to memory of 836	1976	java.exe	50
PID 1976 wrote to memory of 836	1976	java.exe	50
PID 1976 wrote to memory of 836	1976	java.exe	50
PID 836 wrote to memory of 608	836	cmd.exe	51
PID 836 wrote to memory of 608	836	cmd.exe	51
PID 836 wrote to memory of 608	836	cmd.exe	51

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\HK SEMI CORPORATION CO,,Ltd.js"
1⤵
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\SrdqnzeXbF.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:972
- C:\Program Files\Java\jre7\bin\javaw.exe
  "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\zgwdeoqq.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:608
- - C:\Program Files\Java\jre7\bin\java.exe
    "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\zgwdeoqq.txt"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:1464
  - - C:\Windows\system32\cmd.exe
      cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\zgwdeoqq.txt"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:944
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\zgwdeoqq.txt"
        5⤵
        Creates scheduled task(s)
        
        PID:1084
  - - C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\zgwdeoqq.txt"
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1976
    - - C:\Windows\system32\cmd.exe
        
        cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:268
    - - C:\Windows\system32\cmd.exe
        
        cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:468
      - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1856
    - - C:\Windows\system32\cmd.exe
        
        cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1340
      - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
        6⤵
        
        PID:1696
    - - C:\Windows\system32\cmd.exe
        
        cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:836
      - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
        6⤵
        
        PID:608

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:272

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3845472200-3839195424-595303356-1000\83aa4cc77f591dfc2374580bbd95f6ba_7725c12a-7257-458e-a47f-7029d9191548

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

Download Submit
C:\Users\Admin\AppData\Roaming\SrdqnzeXbF.js

Filesize
346KB

MD5
4e73d37c3f3e7adab48a636d20e7b4a5

SHA1
b7148b18df8df7e731694043ceb2050e3463f99c

SHA256
7a4ae69336738bf3431e38c7a1abf0190f1f074b13447914cd42604c7174254e

SHA512
6a3565af24a0e8a4a2e046752ea0f1d966013d3e6bc10a755b3f13eb33c63487fef2698217e54f87d2c314d38760fe079004798d1c7b860b1960d75b5798b1b9

Download Submit
C:\Users\Admin\AppData\Roaming\lib\jna-5.5.0.jar

Filesize
1.4MB

MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\AppData\Roaming\lib\jna-platform-5.5.0.jar

Filesize
2.6MB

MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\AppData\Roaming\lib\sqlite-jdbc-3.14.2.1.jar

Filesize
4.1MB

MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\AppData\Roaming\lib\system-hook-3.5.jar

Filesize
772KB

MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
C:\Users\Admin\AppData\Roaming\zgwdeoqq.txt

Filesize
164KB

MD5
da535bbab93f526e10242ab516b0288b

SHA1
d8b7c7075828195a0c63850d226e2b01492536b4

SHA256
9323684aebe7748204540c226f533dc327074e3aa4b238970d9484a1c8abc426

SHA512
0d2025ab35e533d2ca1142006326c1573055560bea5b311fec5ddf129d5bce3be2778264e58bf183ee6fa9ee681cf3c652f20ab3aae789e96cb3796f7ed65af8

Download Submit
C:\Users\Admin\AppData\Roaming\zgwdeoqq.txt

Filesize
164KB

MD5
da535bbab93f526e10242ab516b0288b

SHA1
d8b7c7075828195a0c63850d226e2b01492536b4

SHA256
9323684aebe7748204540c226f533dc327074e3aa4b238970d9484a1c8abc426

SHA512
0d2025ab35e533d2ca1142006326c1573055560bea5b311fec5ddf129d5bce3be2778264e58bf183ee6fa9ee681cf3c652f20ab3aae789e96cb3796f7ed65af8

Download Submit
C:\Users\Admin\lib\jna-5.5.0.jar

Filesize
1.4MB

MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\lib\jna-platform-5.5.0.jar

Filesize
2.6MB

MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar

Filesize
4.1MB

MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\lib\system-hook-3.5.jar

Filesize
772KB

MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
C:\Users\Admin\zgwdeoqq.txt

Filesize
164KB

MD5
da535bbab93f526e10242ab516b0288b

SHA1
d8b7c7075828195a0c63850d226e2b01492536b4

SHA256
9323684aebe7748204540c226f533dc327074e3aa4b238970d9484a1c8abc426

SHA512
0d2025ab35e533d2ca1142006326c1573055560bea5b311fec5ddf129d5bce3be2778264e58bf183ee6fa9ee681cf3c652f20ab3aae789e96cb3796f7ed65af8

Download Submit
\Users\Admin\AppData\Local\Temp\jna-63116079\jna1906488273679286873.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
memory/608-68-0x00000000022C0000-0x00000000052C0000-memory.dmp

Filesize
48.0MB

Download
memory/608-57-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

Download
memory/1464-84-0x0000000002080000-0x0000000005080000-memory.dmp

Filesize
48.0MB

Download
memory/1976-100-0x0000000002150000-0x0000000005150000-memory.dmp

Filesize
48.0MB

Download
memory/1976-118-0x0000000002150000-0x0000000005150000-memory.dmp

Filesize
48.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads