xtremerat | 1c0e182ac612c18d62d61027c85f5ba67c46f92058fc06241847bbf3c13386c2

General

Target

cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe
Size

67KB
MD5

cdea3af5a80a806efa9eecd50a2f4639
SHA1

abaffa982f4cf2cc3ffc9e3169bbf9da26f86ad8
SHA256

1c0e182ac612c18d62d61027c85f5ba67c46f92058fc06241847bbf3c13386c2
SHA512

79dc151e2f57a64591dee8f9bfb20701eea1b3f12edc78a9cac2e5f578989fed2c9981086b4ba112d44aa775701e1029f32306ce663635b0e7ec8b1eb2ed36aa
SSDEEP

768:hRwkpvlqpyBaTyBHcqpv32OKqqfYAnqJiHB/oGpIbE/ZR5BgHmPUTNgfljPuZ8fL:hRwk3qvMfjKEsIA/gGlfvfpk8IPn7aw

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/3532-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3532-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4904-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3532-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4904-12-0x0000000010000000-0x000000001004D000-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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3532-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3532-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3532-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3532-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4904-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3532-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4904-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87

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
3588	4904	WerFault.exe	89
4552	4904	WerFault.exe	89

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	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 2380 wrote to memory of 3532	2380	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	87
PID 3532 wrote to memory of 4904	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	89
PID 3532 wrote to memory of 4904	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	89
PID 3532 wrote to memory of 4904	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	89
PID 3532 wrote to memory of 4904	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	89
PID 3532 wrote to memory of 2124	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	90
PID 3532 wrote to memory of 2124	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	90
PID 3532 wrote to memory of 2124	3532	cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cdea3af5a80a806efa9eecd50a2f4639_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4904
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 480
      4⤵
      Program crash
      PID:3588
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 488
      4⤵
      Program crash
      PID:4552
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4904 -ip 4904
1⤵
PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4904 -ip 4904
1⤵
PID:1156

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/2380-0-0x0000000074792000-0x0000000074793000-memory.dmp

Filesize
4KB

Download
memory/2380-1-0x0000000074790000-0x0000000074D41000-memory.dmp

Filesize
5.7MB

Download
memory/2380-2-0x0000000074790000-0x0000000074D41000-memory.dmp

Filesize
5.7MB

Download
memory/2380-9-0x0000000074790000-0x0000000074D41000-memory.dmp

Filesize
5.7MB

Download
memory/3532-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3532-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3532-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3532-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3532-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4904-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4904-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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