xtremerat | 992084b98896a304eeae23ed0176ce5782e969e57e02664d7949b43e9474c9a5

General

Target

e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe
Size

187KB
MD5

e385b4d968eb4eebcef184812aa73d59
SHA1

419d009e271e2275102ff4a9fa23ed3b5bbd6ee4
SHA256

992084b98896a304eeae23ed0176ce5782e969e57e02664d7949b43e9474c9a5
SHA512

b665c1d409f4d1290f91a8801b20ba65ffad91920155246fe5631020ca64fa0d53494bde7af8b7d2e0de888c1c4c283002349e308e908af0de67c52d6940f024
SSDEEP

3072:C44rj/lalvjK9xq67zt9lgRtFAvjK9xq67zt9lgRtFKo:pZNjWq6mROjWq6mRm

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

ayyak.zapto.org

Signatures

Detect XtremeRAT payload 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2644-0-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat
behavioral2/memory/3688-1-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat
behavioral2/memory/4148-2-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat
behavioral2/memory/3688-5-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat
behavioral2/memory/3688-6-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat
behavioral2/memory/2644-7-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat
behavioral2/memory/3688-8-0x0000000010000000-0x0000000010068000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{1U3E38MX-81J6-33D0-0NM0-3L0VEU0773MO}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{1U3E38MX-81J6-33D0-0NM0-3L0VEU0773MO}\StubPath = "C:\\Windows\\InstallDir\\svchost.exe restart"	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\svchost.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\svchost.exe"	explorer.exe

Drops file in Windows directory 3 IoCs

Processes:

explorer.exe

description	ioc	process
File opened for modification	C:\Windows\InstallDir\svchost.exe	explorer.exe
File created	C:\Windows\InstallDir\svchost.exe	explorer.exe
File opened for modification	C:\Windows\InstallDir\	explorer.exe

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

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4280 2644 WerFault.exe svchost.exe
4760 2644 WerFault.exe svchost.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid process

3688 explorer.exe

pid	pid_target	process	target process
4280	2644	WerFault.exe	svchost.exe
4760	2644	WerFault.exe	svchost.exe

pid	process
3688	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe

description	pid	process	target process
PID 4148 wrote to memory of 2644	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	svchost.exe
PID 4148 wrote to memory of 2644	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	svchost.exe
PID 4148 wrote to memory of 2644	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	svchost.exe
PID 4148 wrote to memory of 2644	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	svchost.exe
PID 4148 wrote to memory of 3688	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	explorer.exe
PID 4148 wrote to memory of 3688	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	explorer.exe
PID 4148 wrote to memory of 3688	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	explorer.exe
PID 4148 wrote to memory of 3688	4148	e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e385b4d968eb4eebcef184812aa73d59_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4148

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
PID:2644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2644 -s 480
3⤵
- Program crash
PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2644 -s 476
3⤵
- Program crash
PID:4760

C:\Windows\SysWOW64\explorer.exe
explorer.exe
2⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2644 -ip 2644
1⤵
PID:3704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2644 -ip 2644
1⤵
PID:2724

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=2796 --field-trial-handle=2268,i,8796662530135712346,11409037572378858775,262144 --variations-seed-version /prefetch:8
1⤵
PID:3280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2644-0-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/2644-7-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/3688-1-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/3688-5-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/3688-6-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/3688-8-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/4148-2-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads