xtremerat | e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdb

General

Target

e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe
Size

897KB
MD5

791fc7c8280b6ae952b12e031b5cb5a0
SHA1

5106832093271745e45eb057c32dd8fc62a2c535
SHA256

e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdb
SHA512

40dd981673a6842877ee851efd3b7de74bac9429bbe942296f650bf7132ac9a7ac33221a6df1aac1ae97753873a1c8d348433f2e477227e94186c5d5610951e2
SSDEEP

24576:K4lavt0LkLL9IMixoEgea01PncVq9MmCS7D:dkwkn9IMHea01IaPCS7D

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

psyy.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2504-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2504-4-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/700-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2504-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/700-7-0x0000000010000000-0x000000001004D000-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 4928 set thread context of 2504	4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	86

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2504-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2504-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2504-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2504-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/700-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2504-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/700-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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
3908	700	WerFault.exe	87
4624	700	WerFault.exe	87

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	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe
4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 2504	4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	86
PID 4928 wrote to memory of 2504	4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	86
PID 4928 wrote to memory of 2504	4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	86
PID 4928 wrote to memory of 2504	4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	86
PID 4928 wrote to memory of 2504	4928	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	86
PID 2504 wrote to memory of 700	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	87
PID 2504 wrote to memory of 700	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	87
PID 2504 wrote to memory of 700	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	87
PID 2504 wrote to memory of 700	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	87
PID 2504 wrote to memory of 212	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	88
PID 2504 wrote to memory of 212	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	88
PID 2504 wrote to memory of 212	2504	e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe	88

C:\Users\Admin\AppData\Local\Temp\e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe
"C:\Users\Admin\AppData\Local\Temp\e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe
  "C:\Users\Admin\AppData\Local\Temp\e6a899fb6b109125d17e118945793c5f228db092091f2a4f822704bed7152fdbN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 700 -s 480
      4⤵
      Program crash
      PID:3908
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 700 -s 500
      4⤵
      Program crash
      PID:4624
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 700 -ip 700
1⤵
PID:1964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 700 -ip 700
1⤵
PID:4632

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/700-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/700-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2504-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2504-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2504-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2504-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2504-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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