strrat | eec8d2a36caf6e46308dd647eab802a7aa3926ec93835f68bba2143194dc49d6

Analysis

max time kernel
151s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 07:43

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General

Target

50138aa6c36152d659a239c8877faa875d18152fa56c63fada3fc8a69d0719bf.jar
Size

216KB
MD5

d553f70a48745ac7fd556cfa45efbc9c
SHA1

f4fb627758fb70518a2fb6a89be2ff3ea40241f8
SHA256

50138aa6c36152d659a239c8877faa875d18152fa56c63fada3fc8a69d0719bf
SHA512

7e6aceae21bd99063d870e61dcbe39c6f19adfa4268bf91734953119a6a78428d6c1e3f44d40c56ed0cfae2df023ea8a60b09ed2acf48bc722dcd7a2d82933c2
SSDEEP

6144:8qnzpwCDhLMFZOo5WK9+TkfFNkW00canghqSiqnXrrzGFA:XzpQZFkgtNwJkgMYXrB

Score

10^/10

strrat discovery execution persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat

Checks computer location settings 2 TTPs 1 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	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jvzjpvmfi.txt	java.exe

Loads dropped DLL 1 IoCs

pid	Process
2596	java.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3756	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jvzjpvmfi = "\"C:\\Users\\Admin\\AppData\\Roaming\\jvzjpvmfi.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jvzjpvmfi = "\"C:\\Users\\Admin\\AppData\\Roaming\\jvzjpvmfi.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
66	ip-api.com

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job

T1053

pid	Process
3432	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2112	WMIC.exe
Token: SeSecurityPrivilege	2112	WMIC.exe
Token: SeTakeOwnershipPrivilege	2112	WMIC.exe
Token: SeLoadDriverPrivilege	2112	WMIC.exe
Token: SeSystemProfilePrivilege	2112	WMIC.exe
Token: SeSystemtimePrivilege	2112	WMIC.exe
Token: SeProfSingleProcessPrivilege	2112	WMIC.exe
Token: SeIncBasePriorityPrivilege	2112	WMIC.exe
Token: SeCreatePagefilePrivilege	2112	WMIC.exe
Token: SeBackupPrivilege	2112	WMIC.exe
Token: SeRestorePrivilege	2112	WMIC.exe
Token: SeShutdownPrivilege	2112	WMIC.exe
Token: SeDebugPrivilege	2112	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2112	WMIC.exe
Token: SeRemoteShutdownPrivilege	2112	WMIC.exe
Token: SeUndockPrivilege	2112	WMIC.exe
Token: SeManageVolumePrivilege	2112	WMIC.exe
Token: 33	2112	WMIC.exe
Token: 34	2112	WMIC.exe
Token: 35	2112	WMIC.exe
Token: 36	2112	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2112	WMIC.exe
Token: SeSecurityPrivilege	2112	WMIC.exe
Token: SeTakeOwnershipPrivilege	2112	WMIC.exe
Token: SeLoadDriverPrivilege	2112	WMIC.exe
Token: SeSystemProfilePrivilege	2112	WMIC.exe
Token: SeSystemtimePrivilege	2112	WMIC.exe
Token: SeProfSingleProcessPrivilege	2112	WMIC.exe
Token: SeIncBasePriorityPrivilege	2112	WMIC.exe
Token: SeCreatePagefilePrivilege	2112	WMIC.exe
Token: SeBackupPrivilege	2112	WMIC.exe
Token: SeRestorePrivilege	2112	WMIC.exe
Token: SeShutdownPrivilege	2112	WMIC.exe
Token: SeDebugPrivilege	2112	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2112	WMIC.exe
Token: SeRemoteShutdownPrivilege	2112	WMIC.exe
Token: SeUndockPrivilege	2112	WMIC.exe
Token: SeManageVolumePrivilege	2112	WMIC.exe
Token: 33	2112	WMIC.exe
Token: 34	2112	WMIC.exe
Token: 35	2112	WMIC.exe
Token: 36	2112	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1056	WMIC.exe
Token: SeSecurityPrivilege	1056	WMIC.exe
Token: SeTakeOwnershipPrivilege	1056	WMIC.exe
Token: SeLoadDriverPrivilege	1056	WMIC.exe
Token: SeSystemProfilePrivilege	1056	WMIC.exe
Token: SeSystemtimePrivilege	1056	WMIC.exe
Token: SeProfSingleProcessPrivilege	1056	WMIC.exe
Token: SeIncBasePriorityPrivilege	1056	WMIC.exe
Token: SeCreatePagefilePrivilege	1056	WMIC.exe
Token: SeBackupPrivilege	1056	WMIC.exe
Token: SeRestorePrivilege	1056	WMIC.exe
Token: SeShutdownPrivilege	1056	WMIC.exe
Token: SeDebugPrivilege	1056	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1056	WMIC.exe
Token: SeRemoteShutdownPrivilege	1056	WMIC.exe
Token: SeUndockPrivilege	1056	WMIC.exe
Token: SeManageVolumePrivilege	1056	WMIC.exe
Token: 33	1056	WMIC.exe
Token: 34	1056	WMIC.exe
Token: 35	1056	WMIC.exe
Token: 36	1056	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1056	WMIC.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 3756	1380	java.exe	92
PID 1380 wrote to memory of 3756	1380	java.exe	92
PID 1380 wrote to memory of 812	1380	java.exe	96
PID 1380 wrote to memory of 812	1380	java.exe	96
PID 812 wrote to memory of 2384	812	wscript.exe	97
PID 812 wrote to memory of 2384	812	wscript.exe	97
PID 2384 wrote to memory of 4180	2384	javaw.exe	106
PID 2384 wrote to memory of 4180	2384	javaw.exe	106
PID 4180 wrote to memory of 3404	4180	java.exe	108
PID 4180 wrote to memory of 3404	4180	java.exe	108
PID 4180 wrote to memory of 2596	4180	java.exe	110
PID 4180 wrote to memory of 2596	4180	java.exe	110
PID 3404 wrote to memory of 3432	3404	cmd.exe	112
PID 3404 wrote to memory of 3432	3404	cmd.exe	112
PID 2596 wrote to memory of 5032	2596	java.exe	113
PID 2596 wrote to memory of 5032	2596	java.exe	113
PID 5032 wrote to memory of 2112	5032	cmd.exe	115
PID 5032 wrote to memory of 2112	5032	cmd.exe	115
PID 2596 wrote to memory of 4900	2596	java.exe	116
PID 2596 wrote to memory of 4900	2596	java.exe	116
PID 4900 wrote to memory of 1056	4900	cmd.exe	118
PID 4900 wrote to memory of 1056	4900	cmd.exe	118
PID 2596 wrote to memory of 3996	2596	java.exe	119
PID 2596 wrote to memory of 3996	2596	java.exe	119
PID 3996 wrote to memory of 4540	3996	cmd.exe	121
PID 3996 wrote to memory of 4540	3996	cmd.exe	121
PID 2596 wrote to memory of 2352	2596	java.exe	122
PID 2596 wrote to memory of 2352	2596	java.exe	122
PID 2352 wrote to memory of 2404	2352	cmd.exe	124
PID 2352 wrote to memory of 2404	2352	cmd.exe	124

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\50138aa6c36152d659a239c8877faa875d18152fa56c63fada3fc8a69d0719bf.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\system32\icacls.exe
  C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
  2⤵
  - Modifies file permissions
  PID:3756
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\eqqbccrwqf.js
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:812
- - 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\Roaming\jvzjpvmfi.txt"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2384
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\jvzjpvmfi.txt"
      4⤵
      Drops startup file
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:4180
    - - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\jvzjpvmfi.txt"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3404
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\jvzjpvmfi.txt"
        6⤵
        Creates scheduled task(s)
        
        PID:3432
    - - C:\Program Files\Java\jre-1.8\bin\java.exe
        
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\jvzjpvmfi.txt"
        5⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2596
      - C:\Windows\SYSTEM32\cmd.exe
        
        cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:5032
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
        7⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2112
      - C:\Windows\SYSTEM32\cmd.exe
        
        cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:4900
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
        7⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1056
      - C:\Windows\SYSTEM32\cmd.exe
        
        cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:3996
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
        7⤵
        
        PID:4540
      - C:\Windows\SYSTEM32\cmd.exe
        
        cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:2352
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
        7⤵
        
        PID:2404

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=1036 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:4872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
f2437c14e1a3c802a6a7116c62f50835

SHA1
4a7285415058116019a86340f6566d2aca1c9034

SHA256
dff77993652fa51df6f2487f0a9e824edf1735c5627043e24f4225a07bebd5b1

SHA512
ebce17eccec64c6f2567924178e483a89cbe832da10421f2b74c697992f3d7bd9314e0af3f0c3e1f70975975c2962962b926cda10d03a52c8b7cd6f3f0108716

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6944289396031005772.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3808065738-1666277613-1125846146-1000\83aa4cc77f591dfc2374580bbd95f6ba_2397ee06-28fe-4eaa-8777-f7014368c353

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
164KB

MD5
7ea89d19a8441cc58b7255dc9fb205fa

SHA1
2ae19607a8231bffd72353766f4017eb5492f3e8

SHA256
486b68ef93d03c4e486b8ddd9e153391e7debc6839e0c09d38999dd159e30705

SHA512
0a76f52939c305b2756fa486222210a4a8c40deff0fc753d11da899baaa84da2fed37ddbd333c6b1dc91ea07a2a1bffcaeb4db08dcbb3db97c925254e6bcbaf4

Download Submit
C:\Users\Admin\eqqbccrwqf.js

Filesize
341KB

MD5
1b2c87eb5184cf84532f863a7d21fdf7

SHA1
488289245f26e29cd0365df255e988b067daec33

SHA256
32a0f059ccc7ed7c2c0b3dfe6437c21ac8b055a32782c601852dee34923b2e18

SHA512
d280182e35be93e380bf991c0cc6b90c61bf8aeeb11a911afc37389aa885dcd254453e09fd975e424ccc7a5b92512696f2f82f8340935e8531b97900bd7ae025

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
memory/1380-2-0x000001B2D7C50000-0x000001B2D7EC0000-memory.dmp

Filesize
2.4MB

Download
memory/1380-18-0x000001B2D7C50000-0x000001B2D7EC0000-memory.dmp

Filesize
2.4MB

Download
memory/1380-17-0x000001B2D7C30000-0x000001B2D7C31000-memory.dmp

Filesize
4KB

Download
memory/1380-11-0x000001B2D7C30000-0x000001B2D7C31000-memory.dmp

Filesize
4KB

Download
memory/2384-68-0x00000293C2E60000-0x00000293C2E61000-memory.dmp

Filesize
4KB

Download
memory/2384-112-0x00000293C2E80000-0x00000293C30F0000-memory.dmp

Filesize
2.4MB

Download
memory/2384-117-0x00000293C2E60000-0x00000293C2E61000-memory.dmp

Filesize
4KB

Download
memory/2384-245-0x00000293C2E80000-0x00000293C30F0000-memory.dmp

Filesize
2.4MB

Download
memory/2384-60-0x00000293C2E60000-0x00000293C2E61000-memory.dmp

Filesize
4KB

Download
memory/2384-34-0x00000293C2E60000-0x00000293C2E61000-memory.dmp

Filesize
4KB

Download
memory/2384-24-0x00000293C2E80000-0x00000293C30F0000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads