strrat | 7a85be46c2ea87761f8453850accabed698b20ae24994e3f36a9d4fa4b34e1ad

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 04:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

proof of payment.jar
Size

124KB
MD5

9b6b8d9e9c4a78a56dd7f3ff3910d123
SHA1

063bc159f1a611329e1713b4dd464589311f4ac4
SHA256

7a85be46c2ea87761f8453850accabed698b20ae24994e3f36a9d4fa4b34e1ad
SHA512

4a0980b766efb187a4869685bb986f20111268282f80da1c287cbbadb50e6eaba8d2ce46733e627530826d367a13d5351f08eabe48830445925ddbd3be189026
SSDEEP

3072:DqZlIC+q92TZzGmr3EyyF5cRAzDLmiLqnp8559FX:exT2ZDDExDLFenG3FX

Score

10^/10

strrat 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

Processes:

wscript.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

Processes:

java.exe

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

Loads dropped DLL 2 IoCs

Processes:

java.exejava.exe

pid	Process
1888	java.exe
4024	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

java.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\elbmknws = "\"C:\\Users\\Admin\\AppData\\Roaming\\elbmknws.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\elbmknws = "\"C:\\Users\\Admin\\AppData\\Roaming\\elbmknws.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.

Processes:

flow	ioc
38	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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
3096	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

WMIC.exeWMIC.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3376	WMIC.exe
Token: SeSecurityPrivilege	3376	WMIC.exe
Token: SeTakeOwnershipPrivilege	3376	WMIC.exe
Token: SeLoadDriverPrivilege	3376	WMIC.exe
Token: SeSystemProfilePrivilege	3376	WMIC.exe
Token: SeSystemtimePrivilege	3376	WMIC.exe
Token: SeProfSingleProcessPrivilege	3376	WMIC.exe
Token: SeIncBasePriorityPrivilege	3376	WMIC.exe
Token: SeCreatePagefilePrivilege	3376	WMIC.exe
Token: SeBackupPrivilege	3376	WMIC.exe
Token: SeRestorePrivilege	3376	WMIC.exe
Token: SeShutdownPrivilege	3376	WMIC.exe
Token: SeDebugPrivilege	3376	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3376	WMIC.exe
Token: SeRemoteShutdownPrivilege	3376	WMIC.exe
Token: SeUndockPrivilege	3376	WMIC.exe
Token: SeManageVolumePrivilege	3376	WMIC.exe
Token: 33	3376	WMIC.exe
Token: 34	3376	WMIC.exe
Token: 35	3376	WMIC.exe
Token: 36	3376	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3376	WMIC.exe
Token: SeSecurityPrivilege	3376	WMIC.exe
Token: SeTakeOwnershipPrivilege	3376	WMIC.exe
Token: SeLoadDriverPrivilege	3376	WMIC.exe
Token: SeSystemProfilePrivilege	3376	WMIC.exe
Token: SeSystemtimePrivilege	3376	WMIC.exe
Token: SeProfSingleProcessPrivilege	3376	WMIC.exe
Token: SeIncBasePriorityPrivilege	3376	WMIC.exe
Token: SeCreatePagefilePrivilege	3376	WMIC.exe
Token: SeBackupPrivilege	3376	WMIC.exe
Token: SeRestorePrivilege	3376	WMIC.exe
Token: SeShutdownPrivilege	3376	WMIC.exe
Token: SeDebugPrivilege	3376	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3376	WMIC.exe
Token: SeRemoteShutdownPrivilege	3376	WMIC.exe
Token: SeUndockPrivilege	3376	WMIC.exe
Token: SeManageVolumePrivilege	3376	WMIC.exe
Token: 33	3376	WMIC.exe
Token: 34	3376	WMIC.exe
Token: 35	3376	WMIC.exe
Token: 36	3376	WMIC.exe
Token: SeIncreaseQuotaPrivilege	928	WMIC.exe
Token: SeSecurityPrivilege	928	WMIC.exe
Token: SeTakeOwnershipPrivilege	928	WMIC.exe
Token: SeLoadDriverPrivilege	928	WMIC.exe
Token: SeSystemProfilePrivilege	928	WMIC.exe
Token: SeSystemtimePrivilege	928	WMIC.exe
Token: SeProfSingleProcessPrivilege	928	WMIC.exe
Token: SeIncBasePriorityPrivilege	928	WMIC.exe
Token: SeCreatePagefilePrivilege	928	WMIC.exe
Token: SeBackupPrivilege	928	WMIC.exe
Token: SeRestorePrivilege	928	WMIC.exe
Token: SeShutdownPrivilege	928	WMIC.exe
Token: SeDebugPrivilege	928	WMIC.exe
Token: SeSystemEnvironmentPrivilege	928	WMIC.exe
Token: SeRemoteShutdownPrivilege	928	WMIC.exe
Token: SeUndockPrivilege	928	WMIC.exe
Token: SeManageVolumePrivilege	928	WMIC.exe
Token: 33	928	WMIC.exe
Token: 34	928	WMIC.exe
Token: 35	928	WMIC.exe
Token: 36	928	WMIC.exe
Token: SeIncreaseQuotaPrivilege	928	WMIC.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

java.exewscript.exejavaw.exejava.execmd.exejava.execmd.execmd.execmd.execmd.exe

description	pid	Process	procid_target
PID 1140 wrote to memory of 3560	1140	java.exe	85
PID 1140 wrote to memory of 3560	1140	java.exe	85
PID 3560 wrote to memory of 2612	3560	wscript.exe	86
PID 3560 wrote to memory of 2612	3560	wscript.exe	86
PID 2612 wrote to memory of 1888	2612	javaw.exe	94
PID 2612 wrote to memory of 1888	2612	javaw.exe	94
PID 1888 wrote to memory of 2652	1888	java.exe	97
PID 1888 wrote to memory of 2652	1888	java.exe	97
PID 1888 wrote to memory of 4024	1888	java.exe	98
PID 1888 wrote to memory of 4024	1888	java.exe	98
PID 2652 wrote to memory of 3096	2652	cmd.exe	101
PID 2652 wrote to memory of 3096	2652	cmd.exe	101
PID 4024 wrote to memory of 4368	4024	java.exe	102
PID 4024 wrote to memory of 4368	4024	java.exe	102
PID 4368 wrote to memory of 3376	4368	cmd.exe	104
PID 4368 wrote to memory of 3376	4368	cmd.exe	104
PID 4024 wrote to memory of 2992	4024	java.exe	105
PID 4024 wrote to memory of 2992	4024	java.exe	105
PID 2992 wrote to memory of 928	2992	cmd.exe	107
PID 2992 wrote to memory of 928	2992	cmd.exe	107
PID 4024 wrote to memory of 2300	4024	java.exe	108
PID 4024 wrote to memory of 2300	4024	java.exe	108
PID 2300 wrote to memory of 3168	2300	cmd.exe	110
PID 2300 wrote to memory of 3168	2300	cmd.exe	110
PID 4024 wrote to memory of 3132	4024	java.exe	111
PID 4024 wrote to memory of 3132	4024	java.exe	111
PID 3132 wrote to memory of 4860	3132	cmd.exe	113
PID 3132 wrote to memory of 4860	3132	cmd.exe	113

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\proof of payment.jar"
1⤵
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\kwtjfxitjs.js
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3560
- - 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\elbmknws.txt"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2612
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\elbmknws.txt"
      4⤵
      Drops startup file
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:1888
    - - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\elbmknws.txt"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2652
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\elbmknws.txt"
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:3096
    - - 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\elbmknws.txt"
        5⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:4024
      - 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:4368
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
        7⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3376
      - 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:2992
        
        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:928
      - 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:2300
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
        7⤵
        
        PID:3168
      - 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:3132
        
        C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
        7⤵
        
        PID:4860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

Filesize
46B

MD5
4751ecab7e44f66d2f6ac532e9c0ba27

SHA1
25555b9cff3eab3226b812847de81b4a4c69e861

SHA256
dc3a766865e8204ef7876ff83bf5a95b8f23d5724f9ae63e1f7b2e592d14406d

SHA512
bdd523c0f96c63d479202bc06cc8711bd84d9b8169c84bb8b5c79ab7caf9e021efc2ca252dc0e799dd443b5ef1bc36e452a49339327b72b9e61534f57a43d4b5

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

Filesize
46B

MD5
025c1497a7379d8c22951a8f7f75e6b9

SHA1
d9a05c545c3381381e45e80954d0c87b6802ec17

SHA256
e507e7f2e8bdcee797407d8c1939a7ea7d9f921b1a4ac16d9d6dc2f7e492a361

SHA512
33f04428e0a24e01e40ada21f5400169c657e8a6781a0aab9e838f7bf75b257b34e60ebfb1d2eb44b4750d2d065c63b7442ca6a0039d19d745686e5afb950a4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna5483478459217072224.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-786284298-625481688-3210388970-1000\83aa4cc77f591dfc2374580bbd95f6ba_1b74ca46-c49b-4c52-a57d-8cd1ff70c625

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
92KB

MD5
40324e4190ca694d65c17b8142490c1e

SHA1
14f8a7fbd6580cc1146a04af95c37b6772bb5215

SHA256
943a982c65ebf476f6f454a95e4f8105f6c89d3e90d638113f718a208aa51db0

SHA512
885107f66e0441f1d14ae4f193bcacea831f46872ec74501d82f29af7e51731714acf8a63fce72dac557c20c6cd15d1e77734e3fa443bc28dd3cda5aca22f5b7

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

Filesize
211KB

MD5
02f54cae55ac59791732da5e9dc0bc02

SHA1
3471c8048595da2b21de90a073254604baa71f3a

SHA256
84d3131757d898906d44ed9e775526caeae6b0ffc53817101afbcec81119ecb6

SHA512
f16c90ef8952daee6050df14ae372a3021e85045cd8e9fddcabd5699031d1b478577532ba20172c8f8c9d80287c69d056af93a442e20a8f842ec5b3a630bdc67

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/1140-2-0x000001CF323C0000-0x000001CF32630000-memory.dmp

Filesize
2.4MB

Download
memory/1140-14-0x000001CF323C0000-0x000001CF32630000-memory.dmp

Filesize
2.4MB

Download
memory/1140-13-0x000001CF30B90000-0x000001CF30B91000-memory.dmp

Filesize
4KB

Download
memory/1888-149-0x000001B0D9CA0000-0x000001B0D9CA1000-memory.dmp

Filesize
4KB

Download
memory/1888-127-0x000001B0D9CA0000-0x000001B0D9CA1000-memory.dmp

Filesize
4KB

Download
memory/2612-46-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-101-0x0000020638F10000-0x0000020639180000-memory.dmp

Filesize
2.4MB

Download
memory/2612-99-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-98-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-95-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-84-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-79-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-74-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-70-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-56-0x0000020638EF0000-0x0000020638EF1000-memory.dmp

Filesize
4KB

Download
memory/2612-20-0x0000020638F10000-0x0000020639180000-memory.dmp

Filesize
2.4MB

Download
memory/4024-176-0x000001FC3D9A0000-0x000001FC3D9A1000-memory.dmp

Filesize
4KB

Download
memory/4024-190-0x000001FC3D9A0000-0x000001FC3D9A1000-memory.dmp

Filesize
4KB

Download
memory/4024-191-0x000001FC3D9A0000-0x000001FC3D9A1000-memory.dmp

Filesize
4KB

Download