xtremerat | 8e00bb1a9ec139b71b415d22ff806fd398579f6ca507feb5ee45c4af91664e92

General

Target

JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
Size

646KB
MD5

3a0d2b1e7182f45c2e3f2d58437effa9
SHA1

5f544dca5f1c2b2693508d7977c594377ba08e81
SHA256

8e00bb1a9ec139b71b415d22ff806fd398579f6ca507feb5ee45c4af91664e92
SHA512

037b1a562bff14622e7d1d18bc06fdeca7f7582c7754828eb91a1db327bde854b4d781038274f2292c79fb96ec4a9498b6322a80ed3ace5172c810279cd8ba01
SSDEEP

12288:VaWzgMg7v3qnCiMErQohh0F4CCJ8lny/Q76ZP8+:kaHMv6Corjqny/Q76ZP8+

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

waham.no-ip.biz

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4416-12-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4416-13-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3876-14-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4416-15-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3876-16-0x0000000010000000-0x0000000010048000-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 4416	4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4416-7-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4416-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4416-12-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4416-13-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3876-14-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4416-15-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3876-16-0x0000000010000000-0x0000000010048000-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
1432	3876	WerFault.exe	84
2448	3876	WerFault.exe	84

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	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 4416	4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	83
PID 4928 wrote to memory of 4416	4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	83
PID 4928 wrote to memory of 4416	4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	83
PID 4928 wrote to memory of 4416	4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	83
PID 4928 wrote to memory of 4416	4928	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	83
PID 4416 wrote to memory of 3876	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	84
PID 4416 wrote to memory of 3876	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	84
PID 4416 wrote to memory of 3876	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	84
PID 4416 wrote to memory of 3876	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	84
PID 4416 wrote to memory of 3668	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	85
PID 4416 wrote to memory of 3668	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	85
PID 4416 wrote to memory of 3668	4416	JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3a0d2b1e7182f45c2e3f2d58437effa9.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4416
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3876
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 476
      4⤵
      Program crash
      PID:1432
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 504
      4⤵
      Program crash
      PID:2448
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3876 -ip 3876
1⤵
PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3876 -ip 3876
1⤵
PID:2864

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:\Users\Admin\AppData\Local\Temp\aut739A.tmp

Filesize
26KB

MD5
39037e88e5d15881005da0875d922149

SHA1
7dab9df9ce6374212edd4f91d91283ee98c173e9

SHA256
6d7f0bd0cf9753ec3fa6b3008ec76668e7da120b026da444a39a5d16660f6712

SHA512
860601aa6bfced855068141399a13b4cf6a5f9a6add7155ffdb9204453e3e06fccc95884d29138f5c96ef3cc8605d9d8e3e2531bfcfa590e7c295da06773758f

Download Submit
memory/3876-14-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3876-16-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4416-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4416-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4416-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4416-13-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4416-15-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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