strrat | 39694a390267d62c814460cb461426a78d3d43a701f5877896c8cbec48c7827d

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
28/04/2024, 16:50

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General

Target
5d16505a5abfcfc99095a676f1f0bd64.jar
Size 64KB
Sample240428-vb858acd71
SHA256 39694a390267d62c814460cb461426a78d3d43a701f5877896c8cbec48c7827d
MD5 5d16505a5abfcfc99095a676f1f0bd64
SHA1 facfb1f1014ba5f8c8618678a1a9a7f5bf5c35e5
SHA512 a49885eb60f6429c1247ae44bcf806836031a7191078a3b14b47c26b577bd2824d64ab17df8244361e114235600043188eae2794f58f299094976682865dc2cb
SSDEEP 1536:UNWRlwUsz/P+zKG2X2CWYqLvSUWD+YBFBbOl+H/Zm:UNisz/6YriYFfH/Zm
MD5 SHA1 SHA512 SSDEEP

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

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5d16505a5abfcfc99095a676f1f0bd64.jar	java.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1800	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\5d16505a5abfcfc99095a676f1f0bd64 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\5d16505a5abfcfc99095a676f1f0bd64.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5d16505a5abfcfc99095a676f1f0bd64 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\5d16505a5abfcfc99095a676f1f0bd64.jar\""	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
28	ip-api.com

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
4644	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4904	WMIC.exe
Token: SeSecurityPrivilege	4904	WMIC.exe
Token: SeTakeOwnershipPrivilege	4904	WMIC.exe
Token: SeLoadDriverPrivilege	4904	WMIC.exe
Token: SeSystemProfilePrivilege	4904	WMIC.exe
Token: SeSystemtimePrivilege	4904	WMIC.exe
Token: SeProfSingleProcessPrivilege	4904	WMIC.exe
Token: SeIncBasePriorityPrivilege	4904	WMIC.exe
Token: SeCreatePagefilePrivilege	4904	WMIC.exe
Token: SeBackupPrivilege	4904	WMIC.exe
Token: SeRestorePrivilege	4904	WMIC.exe
Token: SeShutdownPrivilege	4904	WMIC.exe
Token: SeDebugPrivilege	4904	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4904	WMIC.exe
Token: SeRemoteShutdownPrivilege	4904	WMIC.exe
Token: SeUndockPrivilege	4904	WMIC.exe
Token: SeManageVolumePrivilege	4904	WMIC.exe
Token: 33	4904	WMIC.exe
Token: 34	4904	WMIC.exe
Token: 35	4904	WMIC.exe
Token: 36	4904	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4904	WMIC.exe
Token: SeSecurityPrivilege	4904	WMIC.exe
Token: SeTakeOwnershipPrivilege	4904	WMIC.exe
Token: SeLoadDriverPrivilege	4904	WMIC.exe
Token: SeSystemProfilePrivilege	4904	WMIC.exe
Token: SeSystemtimePrivilege	4904	WMIC.exe
Token: SeProfSingleProcessPrivilege	4904	WMIC.exe
Token: SeIncBasePriorityPrivilege	4904	WMIC.exe
Token: SeCreatePagefilePrivilege	4904	WMIC.exe
Token: SeBackupPrivilege	4904	WMIC.exe
Token: SeRestorePrivilege	4904	WMIC.exe
Token: SeShutdownPrivilege	4904	WMIC.exe
Token: SeDebugPrivilege	4904	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4904	WMIC.exe
Token: SeRemoteShutdownPrivilege	4904	WMIC.exe
Token: SeUndockPrivilege	4904	WMIC.exe
Token: SeManageVolumePrivilege	4904	WMIC.exe
Token: 33	4904	WMIC.exe
Token: 34	4904	WMIC.exe
Token: 35	4904	WMIC.exe
Token: 36	4904	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2088	WMIC.exe
Token: SeSecurityPrivilege	2088	WMIC.exe
Token: SeTakeOwnershipPrivilege	2088	WMIC.exe
Token: SeLoadDriverPrivilege	2088	WMIC.exe
Token: SeSystemProfilePrivilege	2088	WMIC.exe
Token: SeSystemtimePrivilege	2088	WMIC.exe
Token: SeProfSingleProcessPrivilege	2088	WMIC.exe
Token: SeIncBasePriorityPrivilege	2088	WMIC.exe
Token: SeCreatePagefilePrivilege	2088	WMIC.exe
Token: SeBackupPrivilege	2088	WMIC.exe
Token: SeRestorePrivilege	2088	WMIC.exe
Token: SeShutdownPrivilege	2088	WMIC.exe
Token: SeDebugPrivilege	2088	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2088	WMIC.exe
Token: SeRemoteShutdownPrivilege	2088	WMIC.exe
Token: SeUndockPrivilege	2088	WMIC.exe
Token: SeManageVolumePrivilege	2088	WMIC.exe
Token: 33	2088	WMIC.exe
Token: 34	2088	WMIC.exe
Token: 35	2088	WMIC.exe
Token: 36	2088	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2088	WMIC.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 1800	4844	java.exe	92
PID 4844 wrote to memory of 1800	4844	java.exe	92
PID 4844 wrote to memory of 5036	4844	java.exe	94
PID 4844 wrote to memory of 5036	4844	java.exe	94
PID 4844 wrote to memory of 752	4844	java.exe	95
PID 4844 wrote to memory of 752	4844	java.exe	95
PID 5036 wrote to memory of 4644	5036	cmd.exe	98
PID 5036 wrote to memory of 4644	5036	cmd.exe	98
PID 752 wrote to memory of 3864	752	java.exe	99
PID 752 wrote to memory of 3864	752	java.exe	99
PID 3864 wrote to memory of 4904	3864	cmd.exe	101
PID 3864 wrote to memory of 4904	3864	cmd.exe	101
PID 752 wrote to memory of 4276	752	java.exe	104
PID 752 wrote to memory of 4276	752	java.exe	104
PID 4276 wrote to memory of 2088	4276	cmd.exe	106
PID 4276 wrote to memory of 2088	4276	cmd.exe	106
PID 752 wrote to memory of 4124	752	java.exe	107
PID 752 wrote to memory of 4124	752	java.exe	107
PID 4124 wrote to memory of 4472	4124	cmd.exe	109
PID 4124 wrote to memory of 4472	4124	cmd.exe	109
PID 752 wrote to memory of 4056	752	java.exe	110
PID 752 wrote to memory of 4056	752	java.exe	110
PID 4056 wrote to memory of 4424	4056	cmd.exe	112
PID 4056 wrote to memory of 4424	4056	cmd.exe	112

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\5d16505a5abfcfc99095a676f1f0bd64.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4844
- 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:1800
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\5d16505a5abfcfc99095a676f1f0bd64.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5036
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\5d16505a5abfcfc99095a676f1f0bd64.jar"
    3⤵
    - Creates scheduled task(s)
    PID:4644
- 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\5d16505a5abfcfc99095a676f1f0bd64.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:752
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3864
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:4904
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4276
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2088
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4124
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
      4⤵
      PID:4472
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4056
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
      4⤵
      PID:4424

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=5448 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
1⤵
PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

5d16505a5abfcfc99095a676f1f0bd64.jar

Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\5d16505a5abfcfc99095a676f1f0bd64.jar
Size 64KB
SHA256 39694a390267d62c814460cb461426a78d3d43a701f5877896c8cbec48c7827d
MD5 5d16505a5abfcfc99095a676f1f0bd64
SHA1 facfb1f1014ba5f8c8618678a1a9a7f5bf5c35e5
SHA512 a49885eb60f6429c1247ae44bcf806836031a7191078a3b14b47c26b577bd2824d64ab17df8244361e114235600043188eae2794f58f299094976682865dc2cb
SSDEEP 1536:UNWRlwUsz/P+zKG2X2CWYqLvSUWD+YBFBbOl+H/Zm:UNisz/6YriYFfH/Zm
MD5 SHA1 SHA512 SSDEEP

Submit Download

3903daac9bc4a3b7.timestamp

Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Size 46B
SHA256 5565952ae9fcde50bb98552d11e2fd7d2e2febe254ec98c2b3d368928c5f47bf
MD5 848e8da6d016d9915743a6517f5c7059
SHA1 c4defa6497d1cdff8ae134ed2d13423e14e6b8db
SHA512 f7d89641b4e66d980d00d5430b12857bd82c451f6a1cd06a80d865e3308746c85e74e323bd2a3f3ffc42e1920a339c9c77d8c3b8fa5f28a7dc78a5cd04ea940f
MD5 SHA1 SHA512

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memory/752-52-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-82-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-81-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-80-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-71-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-70-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-69-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-67-0x0000025535680000-0x0000025535681000-memory.dmp

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memory/752-65-0x0000025536F80000-0x0000025537F80000-memory.dmp

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memory/752-53-0x0000025535680000-0x0000025535681000-memory.dmp

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memory/4844-35-0x000001C85C470000-0x000001C85C480000-memory.dmp

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memory/4844-39-0x000001C85C1E0000-0x000001C85D1E0000-memory.dmp

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memory/4844-36-0x000001C85C4A0000-0x000001C85C4B0000-memory.dmp

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memory/4844-38-0x000001C85C4C0000-0x000001C85C4D0000-memory.dmp

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memory/4844-37-0x000001C85C4B0000-0x000001C85C4C0000-memory.dmp

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memory/4844-34-0x000001C85C460000-0x000001C85C470000-memory.dmp

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memory/4844-2-0x000001C85C1E0000-0x000001C85D1E0000-memory.dmp

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memory/4844-79-0x000001C85C1E0000-0x000001C85D1E0000-memory.dmp

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memory/4844-27-0x000001C85C1E0000-0x000001C85D1E0000-memory.dmp

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memory/4844-23-0x000001C85C1E0000-0x000001C85D1E0000-memory.dmp

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memory/4844-11-0x000001C85A840000-0x000001C85A841000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads