xtremerat | da0277751d8d440b235b95ed2c3403834299a54f88776933c2c19f9c7c6b8051

General

Target

bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe
Size

4.6MB
MD5

bc1eec3b5e375d606c62b50d7b3917d3
SHA1

9873a78eb7b9a5855347f4a858292b633364604b
SHA256

da0277751d8d440b235b95ed2c3403834299a54f88776933c2c19f9c7c6b8051
SHA512

76fe2bc45d6de7866778e80c09b63e2b12b3fd37e7a35274bd5fc46de66df7856ccb61dac911ad5c8c795dd4a979aaefa20d3fedb91ac15dceda80c32862b708
SSDEEP

98304:YOuJj/v+bBbbxhHzjp8e8+pkE2lNvh1ZzDj5:YOm+FbbvHzjF9pT2zZvzDj5

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/1644-2-0x0000000010000000-0x00000000104CD000-memory.dmp	family_xtremerat
behavioral1/memory/2516-10-0x0000000010000000-0x00000000104CD000-memory.dmp	family_xtremerat
behavioral1/memory/1644-14-0x0000000010000000-0x00000000104CD000-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

Executes dropped EXE 1 IoCs

pid	Process
2476	778ihsan.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000015cf1-9.dat	upx
behavioral1/memory/2476-11-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2516-7-0x0000000003190000-0x00000000031C4000-memory.dmp	upx
behavioral1/memory/2476-13-0x0000000000400000-0x0000000000434000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\778ihsan.exe.exe	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe
File created	C:\Windows\778ihsan.exe	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe

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

System Information Discovery
T1082

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	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	778ihsan.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 1644	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	30
PID 2516 wrote to memory of 1644	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	30
PID 2516 wrote to memory of 1644	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	30
PID 2516 wrote to memory of 1644	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	30
PID 2516 wrote to memory of 1644	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	30
PID 2516 wrote to memory of 1776	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	31
PID 2516 wrote to memory of 1776	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	31
PID 2516 wrote to memory of 1776	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	31
PID 2516 wrote to memory of 1776	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	31
PID 2516 wrote to memory of 1776	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	31
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2476	2516	bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bc1eec3b5e375d606c62b50d7b3917d3_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1644
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:1776
- C:\Windows\778ihsan.exe
  "C:\Windows\778ihsan.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2476

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

C:\Windows\778ihsan.exe

Filesize
3.9MB

MD5
34252a7f751f9cb1fd9078d738180344

SHA1
72351b42cf556d1be767b8ae5af23c5062620ada

SHA256
b804894ee4cf6264ccae17a7eda9ec97fc0e6178341f73757eb4d43d7c4431e4

SHA512
08032020b3762d57f416181237677df459594e14bd84909f7f72c24ad60c5c5f0fcd8a0875f6eb69c8b5c6cff357567797086e69fb8acbefb57068d590f2ae26

Download Submit
memory/1644-0-0x0000000010000000-0x00000000104CD000-memory.dmp

Filesize
4.8MB

Download
memory/1644-2-0x0000000010000000-0x00000000104CD000-memory.dmp

Filesize
4.8MB

Download
memory/1644-14-0x0000000010000000-0x00000000104CD000-memory.dmp

Filesize
4.8MB

Download
memory/2476-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2476-13-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2516-10-0x0000000010000000-0x00000000104CD000-memory.dmp

Filesize
4.8MB

Download
memory/2516-7-0x0000000003190000-0x00000000031C4000-memory.dmp

Filesize
208KB

Download

Analysis

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