strrat | 51e912dd2285ec623b00678344a6b3ba933e244938fd1470a03d536cbff66a38

General

Target

461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
Size

480KB
MD5

aac338140e178a3cac423d3454cc7467
SHA1

a9c195e15b4109d4ece1309fb4e3b3bd77145421
SHA256

461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb
SHA512

a96b2c8c985feccbc385a8ba1e7583be6913db7da15244b136c203f7ca320a03727425f3927c21157eae0c4da3fbbdd8fb71373655c6824544296ec66df834f2
SSDEEP

12288:PkQNy5kuH2lZ6r4os6WQMiyvtJMDiXxJfrJyru:XvuHTr4J7Qw1JJXxJ0ru

Score

10^/10

strrat discovery persistence stealer trojan

Malware Config

Extracted

Family

strrat

C2

93.185.156.124:1912

127.0.0.1:1912

Attributes

license_id
khonsari
plugins_url
http://jbfrost.live/strigoi/server/?hwid=1&lid=m&ht=5
scheduled_task
true
secondary_startup
true
startup
true

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	cmd.exe

Drops startup file 1 IoCs

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

Loads dropped DLL 2 IoCs

pid	Process
2224	java.exe
4412	java.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\A.jar\""	java.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\A.jar\""	java.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4080 set thread context of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings	cmd.exe

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

pid	Process
4436	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 4080 wrote to memory of 3608	4080	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	86
PID 3608 wrote to memory of 5108	3608	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	87
PID 3608 wrote to memory of 5108	3608	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	87
PID 3608 wrote to memory of 5108	3608	461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe	87
PID 5108 wrote to memory of 448	5108	cmd.exe	89
PID 5108 wrote to memory of 448	5108	cmd.exe	89
PID 448 wrote to memory of 2224	448	javaw.exe	94
PID 448 wrote to memory of 2224	448	javaw.exe	94
PID 2224 wrote to memory of 880	2224	java.exe	96
PID 2224 wrote to memory of 880	2224	java.exe	96
PID 2224 wrote to memory of 4412	2224	java.exe	97
PID 2224 wrote to memory of 4412	2224	java.exe	97
PID 880 wrote to memory of 4436	880	cmd.exe	100
PID 880 wrote to memory of 4436	880	cmd.exe	100

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:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
"C:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
  "C:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3608
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c start "" "C:\Users\Admin\AppData\Local\Temp\A.jar"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:5108
  - - 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\A.jar"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:448
    - - C:\Program Files\Java\jre-1.8\bin\java.exe
        
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\A.jar"
        5⤵
        Drops startup file
        Loads dropped DLL
        Adds Run key to start application
        Suspicious use of WriteProcessMemory
        
        PID:2224
      - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\A.jar"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:880
        
        C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\A.jar"
        7⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4436
      - 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\A.jar"
        6⤵
        Loads dropped DLL
        
        PID:4412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\A.jar

Filesize
92KB

MD5
105a14c6fce083e80f49b30db88ec915

SHA1
46187697a87562210e785917ce6ca16aeb4912b3

SHA256
7e5adae008afee158168b1943fcc41157c7de63ab4792cc5eba8d1830edd6d65

SHA512
2322eeeb100b644d53641ec3c1b0588579565636a2ea934924931f6f77b156b6d4e5925a2f36b0520e1f568d771860af53e9f3c39bb5238f7e7520389692c963

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4467838938611711205.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2392887640-1187051047-2909758433-1000\83aa4cc77f591dfc2374580bbd95f6ba_c186ecc3-67e4-4d2b-8682-b6c322da87aa

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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/448-100-0x000001B6C0BC0000-0x000001B6C0E30000-memory.dmp

Filesize
2.4MB

Download
memory/448-77-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/448-93-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/448-83-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/448-22-0x000001B6C0BC0000-0x000001B6C0E30000-memory.dmp

Filesize
2.4MB

Download
memory/448-54-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/448-56-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/448-71-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/448-74-0x000001B6BF580000-0x000001B6BF581000-memory.dmp

Filesize
4KB

Download
memory/2224-150-0x0000028DED0B0000-0x0000028DED0B1000-memory.dmp

Filesize
4KB

Download
memory/2224-135-0x0000028DED0B0000-0x0000028DED0B1000-memory.dmp

Filesize
4KB

Download
memory/3608-12-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3608-14-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4080-8-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/4080-4-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-17-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-0-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/4080-7-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/4080-6-0x0000000005BC0000-0x0000000005C34000-memory.dmp

Filesize
464KB

Download
memory/4080-5-0x0000000005810000-0x000000000581A000-memory.dmp

Filesize
40KB

Download
memory/4080-9-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-3-0x0000000005770000-0x0000000005802000-memory.dmp

Filesize
584KB

Download
memory/4080-2-0x0000000005E20000-0x00000000063C4000-memory.dmp

Filesize
5.6MB

Download
memory/4080-1-0x0000000000D10000-0x0000000000D8C000-memory.dmp

Filesize
496KB

Download
memory/4080-11-0x0000000009720000-0x00000000097BC000-memory.dmp

Filesize
624KB

Download
memory/4080-10-0x0000000007090000-0x00000000070F0000-memory.dmp

Filesize
384KB

Download
memory/4412-175-0x0000017455110000-0x0000017455111000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads