xtremerat | 178505b0fe241c1e1e404e8258b460a3435acfba0434052dd2aec363aff7a0c8

General

Target

a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe
Size

139KB
MD5

a90a788f257fcb6fb27f2add6c966340
SHA1

963c8589e873f43f984db75c01b5e8ba5acfd172
SHA256

178505b0fe241c1e1e404e8258b460a3435acfba0434052dd2aec363aff7a0c8
SHA512

684f5f8b14e83a0e820676a2ef21918f7adfc63be3274a5a3376f96386d7a7c0add06791759f81cd289db0da6a706055ea040009ce7a0c746e533ae6d1a252d9
SSDEEP

3072:G/v7xIj0jsCpbDRheP5AQ8JSR+VnI14xn0azFRZ0IJxtSO3TvRdr:MdJjrpfuESR+VnIyx1zFRPxjNdr

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

vista054.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2984-13-0x0000000010000000-0x000000001005D000-memory.dmp	family_xtremerat
behavioral1/memory/2800-16-0x0000000010000000-0x000000001005D000-memory.dmp	family_xtremerat
behavioral1/memory/2984-18-0x0000000010000000-0x000000001005D000-memory.dmp	family_xtremerat
behavioral1/memory/2800-21-0x0000000010000000-0x000000001005D000-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
2984	123server.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2984-13-0x0000000010000000-0x000000001005D000-memory.dmp	upx
behavioral1/files/0x0008000000017403-12.dat	upx
behavioral1/memory/2800-16-0x0000000010000000-0x000000001005D000-memory.dmp	upx
behavioral1/memory/2984-18-0x0000000010000000-0x000000001005D000-memory.dmp	upx
behavioral1/memory/2800-21-0x0000000010000000-0x000000001005D000-memory.dmp	upx

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 2 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	123server.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe
Token: 33	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe
Token: 33	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2984	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe	30
PID 2008 wrote to memory of 2984	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe	30
PID 2008 wrote to memory of 2984	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe	30
PID 2008 wrote to memory of 2984	2008	a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe	30
PID 2984 wrote to memory of 2800	2984	123server.exe	31
PID 2984 wrote to memory of 2800	2984	123server.exe	31
PID 2984 wrote to memory of 2800	2984	123server.exe	31
PID 2984 wrote to memory of 2800	2984	123server.exe	31
PID 2984 wrote to memory of 2800	2984	123server.exe	31
PID 2984 wrote to memory of 2844	2984	123server.exe	32
PID 2984 wrote to memory of 2844	2984	123server.exe	32
PID 2984 wrote to memory of 2844	2984	123server.exe	32
PID 2984 wrote to memory of 2844	2984	123server.exe	32
PID 2984 wrote to memory of 2844	2984	123server.exe	32

C:\Users\Admin\AppData\Local\Temp\a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a90a788f257fcb6fb27f2add6c966340_JaffaCakes118.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\123server.exe
  "C:\Users\Admin\AppData\Local\Temp\123server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2800
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2844

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\123server.exe

Filesize
68KB

MD5
f89062a56c67b7e7119bf5474b2e92a0

SHA1
37b35f01085470b3b134b73d85d9561af912e9e5

SHA256
373c5cdd917a95f83465a5c907696efbd21de9119109f7d6a052e58cce5aa1de

SHA512
aa0f2290573b08e9dd9d4dfc3128a6a3427866a4a16b794490bc1129b7aa3794976f12503617f4734e54946b8d8646f87f79255f18a7819fb19542d584546cb1

Download Submit
memory/2008-0-0x000007FEF630E000-0x000007FEF630F000-memory.dmp

Filesize
4KB

Download
memory/2008-1-0x0000000000430000-0x000000000043A000-memory.dmp

Filesize
40KB

Download
memory/2008-2-0x0000000000BD0000-0x0000000000BE0000-memory.dmp

Filesize
64KB

Download
memory/2008-3-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

Filesize
9.6MB

Download
memory/2008-4-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

Filesize
9.6MB

Download
memory/2008-5-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

Filesize
9.6MB

Download
memory/2008-20-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

Filesize
9.6MB

Download
memory/2008-19-0x000007FEF630E000-0x000007FEF630F000-memory.dmp

Filesize
4KB

Download
memory/2800-14-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2800-16-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2800-21-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2984-18-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2984-13-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download

Analysis

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