xtremerat | 2030b7f91cbb02b5ee21bc563673593f8880f84a0b4e04296e95d4fdca2b777c

General

Target

9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe
Size

110KB
MD5

9400d1ebcbf44687c8a5347e0f8a382f
SHA1

582b4fd345df8bd0cdc2b83c5fa71ed3854ef07a
SHA256

2030b7f91cbb02b5ee21bc563673593f8880f84a0b4e04296e95d4fdca2b777c
SHA512

d2a383932d18ebab604d511fc12c76989370b94f536020b84e4f91ab5eb6b6cd969d98fc96f58c059aeb9143b28045542abc62b9b685364fe9bd52b74038c054
SSDEEP

3072:8dvVjqqdqqqLJqMPaZ0JKYws5hPSMNWrw7JfPZF7e+U9Fn:8dvVjqqdqqqLJqkdh/YrorK+U

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mimmo86.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/816-25-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/816-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/888-26-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/816-27-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/888-28-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4264 set thread context of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/816-22-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/816-20-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/816-25-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/816-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/888-26-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/816-27-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/888-28-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1088	888	WerFault.exe	83
820	888	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 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	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 4264 wrote to memory of 816	4264	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	82
PID 816 wrote to memory of 888	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	83
PID 816 wrote to memory of 888	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	83
PID 816 wrote to memory of 888	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	83
PID 816 wrote to memory of 888	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	83
PID 816 wrote to memory of 536	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	84
PID 816 wrote to memory of 536	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	84
PID 816 wrote to memory of 536	816	9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4264
- C:\Users\Admin\AppData\Local\Temp\9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\9400d1ebcbf44687c8a5347e0f8a382f_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 888 -s 480
      4⤵
      Program crash
      PID:1088
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 888 -s 488
      4⤵
      Program crash
      PID:820
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 888 -ip 888
1⤵
PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 888 -ip 888
1⤵
PID:4476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

memory/816-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/816-27-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/816-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/816-25-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/816-22-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/888-28-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/888-26-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4264-8-0x0000000000710000-0x0000000000720000-memory.dmp

Filesize
64KB

Download
memory/4264-17-0x0000000002480000-0x0000000002490000-memory.dmp

Filesize
64KB

Download
memory/4264-12-0x0000000002430000-0x0000000002440000-memory.dmp

Filesize
64KB

Download
memory/4264-11-0x0000000002420000-0x0000000002430000-memory.dmp

Filesize
64KB

Download
memory/4264-9-0x0000000000720000-0x0000000000730000-memory.dmp

Filesize
64KB

Download
memory/4264-0-0x0000000000400000-0x000000000041C600-memory.dmp

Filesize
113KB

Download
memory/4264-10-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download
memory/4264-5-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/4264-4-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/4264-13-0x0000000002440000-0x0000000002450000-memory.dmp

Filesize
64KB

Download
memory/4264-3-0x00000000005A0000-0x00000000005B0000-memory.dmp

Filesize
64KB

Download
memory/4264-2-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/4264-1-0x0000000000580000-0x0000000000590000-memory.dmp

Filesize
64KB

Download
memory/4264-23-0x0000000000400000-0x000000000041C600-memory.dmp

Filesize
113KB

Download
memory/4264-14-0x0000000002450000-0x0000000002460000-memory.dmp

Filesize
64KB

Download
memory/4264-15-0x0000000002460000-0x0000000002470000-memory.dmp

Filesize
64KB

Download
memory/4264-16-0x0000000002470000-0x0000000002480000-memory.dmp

Filesize
64KB

Download
memory/4264-7-0x0000000000700000-0x0000000000710000-memory.dmp

Filesize
64KB

Download
memory/4264-6-0x00000000005E0000-0x00000000005F0000-memory.dmp

Filesize
64KB

Download

Analysis

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