strrat | 7c79a4eed33e40230de0b79cef9fc5425916aea40ae610b234720f609f50b764

General

Target

Prosba-o-oferte.jar
Size

41KB
MD5

b225f83a537673f3053e63db84a30662
SHA1

55ea9f056d46bdd03a78df3e885565ec845a31c1
SHA256

7c79a4eed33e40230de0b79cef9fc5425916aea40ae610b234720f609f50b764
SHA512

f5453270287724b2b2e576feb9745c35dfb3069029b0d28a69e9415e6b40f55bf7e91cff0f42217c6024d7d0e8e8d20dc47cfa9d08c4182a2406c13378aef523
SSDEEP

768:3/AKKv6LboyiFV9jKJ6K71Ifu+Lh+FP+6I3zY103e0NhyDEj:YJvIaV9LqCush+FPKs10ufDE

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\Prosba-o-oferte.jar java.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Prosba-o-oferte.jar	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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\Prosba-o-oferte = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Prosba-o-oferte.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Prosba-o-oferte = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Prosba-o-oferte.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.

Processes:

flow ioc

4 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

Processes:

schtasks.exe

pid process

2788 schtasks.exe

flow	ioc
4	ip-api.com

pid	process
2788	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

WMIC.exeWMIC.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2460	WMIC.exe
Token: SeSecurityPrivilege	2460	WMIC.exe
Token: SeTakeOwnershipPrivilege	2460	WMIC.exe
Token: SeLoadDriverPrivilege	2460	WMIC.exe
Token: SeSystemProfilePrivilege	2460	WMIC.exe
Token: SeSystemtimePrivilege	2460	WMIC.exe
Token: SeProfSingleProcessPrivilege	2460	WMIC.exe
Token: SeIncBasePriorityPrivilege	2460	WMIC.exe
Token: SeCreatePagefilePrivilege	2460	WMIC.exe
Token: SeBackupPrivilege	2460	WMIC.exe
Token: SeRestorePrivilege	2460	WMIC.exe
Token: SeShutdownPrivilege	2460	WMIC.exe
Token: SeDebugPrivilege	2460	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2460	WMIC.exe
Token: SeRemoteShutdownPrivilege	2460	WMIC.exe
Token: SeUndockPrivilege	2460	WMIC.exe
Token: SeManageVolumePrivilege	2460	WMIC.exe
Token: 33	2460	WMIC.exe
Token: 34	2460	WMIC.exe
Token: 35	2460	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2460	WMIC.exe
Token: SeSecurityPrivilege	2460	WMIC.exe
Token: SeTakeOwnershipPrivilege	2460	WMIC.exe
Token: SeLoadDriverPrivilege	2460	WMIC.exe
Token: SeSystemProfilePrivilege	2460	WMIC.exe
Token: SeSystemtimePrivilege	2460	WMIC.exe
Token: SeProfSingleProcessPrivilege	2460	WMIC.exe
Token: SeIncBasePriorityPrivilege	2460	WMIC.exe
Token: SeCreatePagefilePrivilege	2460	WMIC.exe
Token: SeBackupPrivilege	2460	WMIC.exe
Token: SeRestorePrivilege	2460	WMIC.exe
Token: SeShutdownPrivilege	2460	WMIC.exe
Token: SeDebugPrivilege	2460	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2460	WMIC.exe
Token: SeRemoteShutdownPrivilege	2460	WMIC.exe
Token: SeUndockPrivilege	2460	WMIC.exe
Token: SeManageVolumePrivilege	2460	WMIC.exe
Token: 33	2460	WMIC.exe
Token: 34	2460	WMIC.exe
Token: 35	2460	WMIC.exe
Token: SeIncreaseQuotaPrivilege	284	WMIC.exe
Token: SeSecurityPrivilege	284	WMIC.exe
Token: SeTakeOwnershipPrivilege	284	WMIC.exe
Token: SeLoadDriverPrivilege	284	WMIC.exe
Token: SeSystemProfilePrivilege	284	WMIC.exe
Token: SeSystemtimePrivilege	284	WMIC.exe
Token: SeProfSingleProcessPrivilege	284	WMIC.exe
Token: SeIncBasePriorityPrivilege	284	WMIC.exe
Token: SeCreatePagefilePrivilege	284	WMIC.exe
Token: SeBackupPrivilege	284	WMIC.exe
Token: SeRestorePrivilege	284	WMIC.exe
Token: SeShutdownPrivilege	284	WMIC.exe
Token: SeDebugPrivilege	284	WMIC.exe
Token: SeSystemEnvironmentPrivilege	284	WMIC.exe
Token: SeRemoteShutdownPrivilege	284	WMIC.exe
Token: SeUndockPrivilege	284	WMIC.exe
Token: SeManageVolumePrivilege	284	WMIC.exe
Token: 33	284	WMIC.exe
Token: 34	284	WMIC.exe
Token: 35	284	WMIC.exe
Token: SeIncreaseQuotaPrivilege	284	WMIC.exe
Token: SeSecurityPrivilege	284	WMIC.exe
Token: SeTakeOwnershipPrivilege	284	WMIC.exe
Token: SeLoadDriverPrivilege	284	WMIC.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

java.execmd.exejava.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2276 wrote to memory of 2596	2276	java.exe	cmd.exe
PID 2276 wrote to memory of 2596	2276	java.exe	cmd.exe
PID 2276 wrote to memory of 2596	2276	java.exe	cmd.exe
PID 2276 wrote to memory of 2572	2276	java.exe	java.exe
PID 2276 wrote to memory of 2572	2276	java.exe	java.exe
PID 2276 wrote to memory of 2572	2276	java.exe	java.exe
PID 2596 wrote to memory of 2788	2596	cmd.exe	schtasks.exe
PID 2596 wrote to memory of 2788	2596	cmd.exe	schtasks.exe
PID 2596 wrote to memory of 2788	2596	cmd.exe	schtasks.exe
PID 2572 wrote to memory of 2452	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 2452	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 2452	2572	java.exe	cmd.exe
PID 2452 wrote to memory of 2460	2452	cmd.exe	WMIC.exe
PID 2452 wrote to memory of 2460	2452	cmd.exe	WMIC.exe
PID 2452 wrote to memory of 2460	2452	cmd.exe	WMIC.exe
PID 2572 wrote to memory of 2888	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 2888	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 2888	2572	java.exe	cmd.exe
PID 2888 wrote to memory of 284	2888	cmd.exe	WMIC.exe
PID 2888 wrote to memory of 284	2888	cmd.exe	WMIC.exe
PID 2888 wrote to memory of 284	2888	cmd.exe	WMIC.exe
PID 2572 wrote to memory of 1464	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 1464	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 1464	2572	java.exe	cmd.exe
PID 1464 wrote to memory of 2428	1464	cmd.exe	WMIC.exe
PID 1464 wrote to memory of 2428	1464	cmd.exe	WMIC.exe
PID 1464 wrote to memory of 2428	1464	cmd.exe	WMIC.exe
PID 2572 wrote to memory of 2740	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 2740	2572	java.exe	cmd.exe
PID 2572 wrote to memory of 2740	2572	java.exe	cmd.exe
PID 2740 wrote to memory of 2540	2740	cmd.exe	WMIC.exe
PID 2740 wrote to memory of 2540	2740	cmd.exe	WMIC.exe
PID 2740 wrote to memory of 2540	2740	cmd.exe	WMIC.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:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Prosba-o-oferte.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2276

C:\Windows\system32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Prosba-o-oferte.jar"
2⤵
- Suspicious use of WriteProcessMemory
PID:2596

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Prosba-o-oferte.jar"
3⤵
- Creates scheduled task(s)
PID:2788

C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Prosba-o-oferte.jar"
2⤵
- Suspicious use of WriteProcessMemory
PID:2572

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:2452

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2460

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:2888

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:284

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:1464

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
4⤵
PID:2428

C:\Windows\system32\cmd.exe
cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
3⤵
- Suspicious use of WriteProcessMemory
PID:2740

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
4⤵
PID:2540

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

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Prosba-o-oferte.jar
Filesize
41KB

MD5
b225f83a537673f3053e63db84a30662

SHA1
55ea9f056d46bdd03a78df3e885565ec845a31c1

SHA256
7c79a4eed33e40230de0b79cef9fc5425916aea40ae610b234720f609f50b764

SHA512
f5453270287724b2b2e576feb9745c35dfb3069029b0d28a69e9415e6b40f55bf7e91cff0f42217c6024d7d0e8e8d20dc47cfa9d08c4182a2406c13378aef523

Download Submit
memory/2276-9-0x00000000025E0000-0x00000000055E0000-memory.dmp

Filesize
48.0MB

Download
memory/2276-10-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2276-11-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2572-22-0x0000000002610000-0x0000000005610000-memory.dmp

Filesize
48.0MB

Download
memory/2572-29-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2572-31-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2572-32-0x0000000002610000-0x0000000005610000-memory.dmp

Filesize
48.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads