xtremerat | 9a3e6c985c8c6a9a4ee9084cac7f095ed57ffdd75e1cbb855b1a708c1343db44

General

Target

JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
Size

186KB
MD5

6557563c8efaa123a13f5bdfb3059bfb
SHA1

6a698e4d8818febcf5f819463594148964c5d083
SHA256

9a3e6c985c8c6a9a4ee9084cac7f095ed57ffdd75e1cbb855b1a708c1343db44
SHA512

87292e1222db5c45c6f0c448a514543dcad17114ae99ae55a7cfd896a9760f069585bebb3380b9640e2944a31135282440ac5ec6bb353d1b160d2bb8b139a81b
SSDEEP

3072:7OGcoJkUnEz+BByOruHq6nyhKiSZywXKeF2XB83gZ9i3KjGKqi/i3Q1JyZgbZDt/:iIJfnO+Bdr6yhJ6DXlk1Li3KqKTq3uyW

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 1 IoCs

resource	yara_rule
behavioral2/memory/1576-22-0x0000000010000000-0x000000001004D000-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
Xtremerat family
xtremerat

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\L:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\U:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\W:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\G:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\N:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\V:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\Z:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\I:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\B:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\H:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\M:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\R:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\S:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\A:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\J:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\K:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\O:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\P:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\Q:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\T:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\X:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\E:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
File opened (read-only)	\??\Y:	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1804-0-0x0000000000400000-0x0000000000493000-memory.dmp	upx
behavioral2/memory/1576-21-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1576-22-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1804-23-0x0000000000400000-0x0000000000493000-memory.dmp	upx
behavioral2/memory/1576-24-0x0000000000400000-0x0000000000493000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2108	1576	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
Token: SeCreatePagefilePrivilege	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82
PID 1804 wrote to memory of 1576	1804	JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe"
1⤵
- Enumerates connected drives
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6557563c8efaa123a13f5bdfb3059bfb.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1576
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 380
    3⤵
    - Program crash
    PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1576 -ip 1576
1⤵
PID:1572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

Download Submit
memory/1576-21-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1576-22-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1576-24-0x0000000000400000-0x0000000000493000-memory.dmp

Filesize
588KB

Download
memory/1804-0-0x0000000000400000-0x0000000000493000-memory.dmp

Filesize
588KB

Download
memory/1804-23-0x0000000000400000-0x0000000000493000-memory.dmp

Filesize
588KB

Download

Analysis

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