strrat | 1b27fd330da9cc668f6d2e823523cf676e8c5020b0975f68d0d6125d17c03792

Analysis

max time kernel
139s
max time network
149s
platform
windows7_x64
resource
win7v20210408
submitted
10-05-2021 13:21

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General

Target

F14 PO pdf.jar
Size

101KB
MD5

36dcd262d70e5127c413253598ebdd87
SHA1

2ad94aa5e8366c843f9451e774d48350a6f9c432
SHA256

1b27fd330da9cc668f6d2e823523cf676e8c5020b0975f68d0d6125d17c03792
SHA512

50b87b296ad5214a0a628915556f90e158cb9c099b41ba097ea8181d79524864889ba65595350542363c7d66dbf80f3c37370e74119321f4a302e61542f517d7

Score

10^/10

strrat persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat
Drops startup file 1 IoCs

Processes:

java.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\F14 PO pdf.jar java.exe
Loads dropped DLL 2 IoCs

Processes:

java.exejava.exe

pid process

864 java.exe
896 java.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\F14 PO pdf.jar	java.exe

pid	process
864	java.exe
896	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

java.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\F14 PO pdf = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\F14 PO pdf.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F14 PO pdf = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\F14 PO pdf.jar\""	java.exe

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

Processes:

schtasks.exe

pid process

1492 schtasks.exe

pid	process
1492	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

java.exejava.execmd.exe

description	pid	process	target process
PID 1796 wrote to memory of 864	1796	java.exe	java.exe
PID 1796 wrote to memory of 864	1796	java.exe	java.exe
PID 1796 wrote to memory of 864	1796	java.exe	java.exe
PID 864 wrote to memory of 1132	864	java.exe	cmd.exe
PID 864 wrote to memory of 1132	864	java.exe	cmd.exe
PID 864 wrote to memory of 1132	864	java.exe	cmd.exe
PID 864 wrote to memory of 896	864	java.exe	java.exe
PID 864 wrote to memory of 896	864	java.exe	java.exe
PID 864 wrote to memory of 896	864	java.exe	java.exe
PID 1132 wrote to memory of 1492	1132	cmd.exe	schtasks.exe
PID 1132 wrote to memory of 1492	1132	cmd.exe	schtasks.exe
PID 1132 wrote to memory of 1492	1132	cmd.exe	schtasks.exe

C:\Windows\system32\java.exe
java -jar "C:\Users\Admin\AppData\Local\Temp\F14 PO pdf.jar"
1⤵
- Suspicious use of WriteProcessMemory
PID:1796

C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\F14 PO pdf.jar"
2⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:864

C:\Windows\system32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\F14 PO pdf.jar"
3⤵
- Suspicious use of WriteProcessMemory
PID:1132

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\F14 PO pdf.jar"
4⤵
- Creates scheduled task(s)
PID:1492

C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\F14 PO pdf.jar"
3⤵
- Loads dropped DLL
PID:896

Network

MITRE ATT&CK Matrix ATT&CK 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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3909337386896043240.dll
MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\F14 PO pdf.jar
MD5
36dcd262d70e5127c413253598ebdd87

SHA1
2ad94aa5e8366c843f9451e774d48350a6f9c432

SHA256
1b27fd330da9cc668f6d2e823523cf676e8c5020b0975f68d0d6125d17c03792

SHA512
50b87b296ad5214a0a628915556f90e158cb9c099b41ba097ea8181d79524864889ba65595350542363c7d66dbf80f3c37370e74119321f4a302e61542f517d7

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2455352368-1077083310-2879168483-1000\83aa4cc77f591dfc2374580bbd95f6ba_14c10c19-3a0b-4ef0-8928-af871cb14c00
MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

Download Submit
C:\Users\Admin\AppData\Roaming\lib\jna-5.5.0.jar
MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\AppData\Roaming\lib\jna-platform-5.5.0.jar
MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\AppData\Roaming\lib\sqlite-jdbc-3.14.2.1.jar
MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\AppData\Roaming\lib\system-hook-3.5.jar
MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
C:\Users\Admin\F14 PO pdf.jar
MD5
36dcd262d70e5127c413253598ebdd87

SHA1
2ad94aa5e8366c843f9451e774d48350a6f9c432

SHA256
1b27fd330da9cc668f6d2e823523cf676e8c5020b0975f68d0d6125d17c03792

SHA512
50b87b296ad5214a0a628915556f90e158cb9c099b41ba097ea8181d79524864889ba65595350542363c7d66dbf80f3c37370e74119321f4a302e61542f517d7

Download Submit
C:\Users\Admin\lib\jna-5.5.0.jar
MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\lib\jna-platform-5.5.0.jar
MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\lib\system-hook-3.5.jar
MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
\Users\Admin\AppData\Local\Temp\jna-63116079\jna3909337386896043240.dll
MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
\Users\Admin\AppData\Local\Temp\jna-63116079\jna6035354224470958768.dll
MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
memory/864-97-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/864-88-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/864-87-0x00000000021D0000-0x0000000002440000-memory.dmp

Filesize
2.4MB

Download
memory/864-83-0x0000000000000000-mapping.dmp

Download
memory/864-106-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/896-138-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/896-118-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/896-108-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/896-96-0x0000000000000000-mapping.dmp

Download
memory/1132-95-0x0000000000000000-mapping.dmp

Download
memory/1492-99-0x0000000000000000-mapping.dmp

Download
memory/1796-60-0x000007FEFC381000-0x000007FEFC383000-memory.dmp

Filesize
8KB

Download
memory/1796-67-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-86-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-75-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-79-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-80-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-74-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-76-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-66-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-63-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-62-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-61-0x00000000020D0000-0x0000000002340000-memory.dmp

Filesize
2.4MB

Download
memory/1796-81-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1796-82-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download