strrat | 374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790

General

Target

374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar
Size

64KB
MD5

575d75ecae9946950af94951bfac908e
SHA1

856900c7d62b852f2f5e854f11d8b072aa3721b1
SHA256

374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790
SHA512

1fd705f755e348f3d69f1a32315762d23fa74857d8e697f5f2b19081bc1dd210eb70cda20534369ede70ec4a7fe33edb2d67680299b5963af7dae5f2476c259c
SSDEEP

1536:4jdiIZTjmn6fVQsJ4J7gTtcMbVrHCCT3Kk/:4jwINVqsJmiVrC/k/

Score

10^/10

strrat discovery 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\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar	java.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4536 icacls.exe

pid	process
4536	icacls.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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.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/Job
T1053

Processes:

schtasks.exe

pid process

1664 schtasks.exe

pid	process
1664	schtasks.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

java.execmd.exe

description	pid	process	target process
PID 2084 wrote to memory of 4536	2084	java.exe	icacls.exe
PID 2084 wrote to memory of 4536	2084	java.exe	icacls.exe
PID 2084 wrote to memory of 2108	2084	java.exe	cmd.exe
PID 2084 wrote to memory of 2108	2084	java.exe	cmd.exe
PID 2084 wrote to memory of 4476	2084	java.exe	java.exe
PID 2084 wrote to memory of 4476	2084	java.exe	java.exe
PID 2108 wrote to memory of 1664	2108	cmd.exe	schtasks.exe
PID 2108 wrote to memory of 1664	2108	cmd.exe	schtasks.exe

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\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2084

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:4536

C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar"
2⤵
- Suspicious use of WriteProcessMemory
PID:2108

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar"
3⤵
- Creates scheduled task(s)
PID:1664

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\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar"
2⤵
PID:4476

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=3692 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
1⤵
PID:4348

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

File and Directory Permissions Modification

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar
Filesize
64KB

MD5
575d75ecae9946950af94951bfac908e

SHA1
856900c7d62b852f2f5e854f11d8b072aa3721b1

SHA256
374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790

SHA512
1fd705f755e348f3d69f1a32315762d23fa74857d8e697f5f2b19081bc1dd210eb70cda20534369ede70ec4a7fe33edb2d67680299b5963af7dae5f2476c259c

Download Submit
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
fde145cc1a0654dcf86320ed5653644c

SHA1
321064e34b7e70e9fca972f27abbaac82ca402d0

SHA256
9385b76aa94b8504ada9cf3aaaa7a1106dba903ff78d434ea7fba82a9de20f72

SHA512
e47d03daf7f93466a942cf45add5d94b211a05f5eb70f0a74492585752ec32fae0543c28f6b10e776e4dc70eded751a2edc951d46859c8fe5332f5f22661285f

Download Submit
memory/2084-33-0x000001D8082D0000-0x000001D8092D0000-memory.dmp

Filesize
16.0MB

Download
memory/2084-20-0x000001D8082D0000-0x000001D8092D0000-memory.dmp

Filesize
16.0MB

Download
memory/2084-25-0x000001D8082D0000-0x000001D8092D0000-memory.dmp

Filesize
16.0MB

Download
memory/2084-16-0x000001D8082B0000-0x000001D8082B1000-memory.dmp

Filesize
4KB

Download
memory/2084-72-0x000001D8082D0000-0x000001D8092D0000-memory.dmp

Filesize
16.0MB

Download
memory/2084-35-0x000001D808550000-0x000001D808560000-memory.dmp

Filesize
64KB

Download
memory/2084-36-0x000001D808560000-0x000001D808570000-memory.dmp

Filesize
64KB

Download
memory/2084-37-0x000001D8085B0000-0x000001D8085C0000-memory.dmp

Filesize
64KB

Download
memory/2084-38-0x000001D8085A0000-0x000001D8085B0000-memory.dmp

Filesize
64KB

Download
memory/2084-39-0x000001D8082D0000-0x000001D8092D0000-memory.dmp

Filesize
16.0MB

Download
memory/2084-2-0x000001D8082D0000-0x000001D8092D0000-memory.dmp

Filesize
16.0MB

Download
memory/2084-11-0x000001D8082B0000-0x000001D8082B1000-memory.dmp

Filesize
4KB

Download
memory/4476-45-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-63-0x000001DB26080000-0x000001DB26081000-memory.dmp

Filesize
4KB

Download
memory/4476-65-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-66-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-68-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-53-0x000001DB26080000-0x000001DB26081000-memory.dmp

Filesize
4KB

Download
memory/4476-73-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-74-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-75-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-76-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-77-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download
memory/4476-78-0x000001DB260A0000-0x000001DB270A0000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads