xtremerat | be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81

General

Target

be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe
Size

752KB
MD5

4112338bfece3d6750dfca05ff43f061
SHA1

47dc0a5d8e3d451a0e89114b5539853691cd1108
SHA256

be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81
SHA512

5692e0d9daedfc8499a1284720558deabe03cfaa551c4df278809ae9424d41750dd8fcd8cd52078e0d71a29297ac171bbf19de13677e2e5bdad6750fb76481c5
SSDEEP

12288:mkWAehJuqTtszUqKKnW0UvttLbp2YYPouUlGw1/EuaTP0JwV+G2rwhvihEw7Oifg:mkWAAuq5sz3BnR6zgYYPouUlGwhqQwEa

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

harem.zapto.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3732-141-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/3732-142-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3732-143-0x0000000010000000-0x000000001004D000-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

Executes dropped EXE 2 IoCs

pid	Process
224	qawa.exe
3124	server.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{52TONPJO-IQM6-J352-4D45-01OX22PP5463}	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52TONPJO-IQM6-J352-4D45-01OX22PP5463}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	server.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00040000000225f8-134.dat	upx
behavioral2/files/0x00040000000225f8-135.dat	upx
behavioral2/memory/224-136-0x0000000000400000-0x0000000000596000-memory.dmp	upx
behavioral2/files/0x0007000000023177-138.dat	upx
behavioral2/files/0x0007000000023177-139.dat	upx
behavioral2/memory/3124-140-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3732-142-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3732-143-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	qawa.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe"	server.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	server.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\Server.exe	server.exe
File created	C:\Windows\SysWOW64\InstallDir\Server.exe	server.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3980	3732	WerFault.exe	87
1116	3732	WerFault.exe	87

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
224	qawa.exe
224	qawa.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
224	qawa.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2436	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2436	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
224	qawa.exe
224	qawa.exe
3124	server.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 224	4212	be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe	82
PID 4212 wrote to memory of 224	4212	be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe	82
PID 4212 wrote to memory of 224	4212	be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe	82
PID 224 wrote to memory of 3124	224	qawa.exe	84
PID 224 wrote to memory of 3124	224	qawa.exe	84
PID 224 wrote to memory of 3124	224	qawa.exe	84
PID 3124 wrote to memory of 3732	3124	server.exe	87
PID 3124 wrote to memory of 3732	3124	server.exe	87
PID 3124 wrote to memory of 3732	3124	server.exe	87
PID 3124 wrote to memory of 3732	3124	server.exe	87

C:\Users\Admin\AppData\Local\Temp\be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe
"C:\Users\Admin\AppData\Local\Temp\be503c9bd2a7e92c88049fbb0b662829472590b7381c44c53b60542d8646cd81.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Users\Admin\AppData\Local\Temp\qawa.exe
  "C:\Users\Admin\AppData\Local\Temp\qawa.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:224
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe" cd$
    3⤵
    - Executes dropped EXE
    - Modifies Installed Components in the registry
    - Adds Run key to start application
    - Drops file in System32 directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3124
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      PID:3732
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 504
        5⤵
        Program crash
        
        PID:3980
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 512
        5⤵
        Program crash
        
        PID:1116

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x370 0x374
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3732 -ip 3732
1⤵
PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3732 -ip 3732
1⤵
PID:2616

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\qawa.exe

Filesize
549KB

MD5
7f0f33b361bf1b35e32e8fa2ac1abdfd

SHA1
b1e547b8595296b1958e7c2ce5e23446038fb1f1

SHA256
ad1c3fc784175994dfbf050e0358c46e61ecf5a64e64404f54bc806f4b0289f6

SHA512
8bb7d9b4f6b7678bbf6c779950d33a67d4e7161d3ddf1b3dc3d502a2ebd6debe75375331c7bf207f6633a0a507608f4adb755a66aebe6a8ed46b55614c7a4519

Download Submit
C:\Users\Admin\AppData\Local\Temp\qawa.exe

Filesize
549KB

MD5
7f0f33b361bf1b35e32e8fa2ac1abdfd

SHA1
b1e547b8595296b1958e7c2ce5e23446038fb1f1

SHA256
ad1c3fc784175994dfbf050e0358c46e61ecf5a64e64404f54bc806f4b0289f6

SHA512
8bb7d9b4f6b7678bbf6c779950d33a67d4e7161d3ddf1b3dc3d502a2ebd6debe75375331c7bf207f6633a0a507608f4adb755a66aebe6a8ed46b55614c7a4519

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
33KB

MD5
6584ed4d4c8f69ba710b148b1c161b45

SHA1
74a4ed8ed90f18554968516a0399adb8f1930025

SHA256
67f781c9fcb71fc27986a478e1a683a626eaa36e52c8659b6354734d4df6c6ef

SHA512
797f471cda9682db2689cc8cbe8f172df046caffa967134e841c03a4be4e62c4094a37fa4ef3490939c4aacd3eee358f78e1a6e099e6bc8c983fc9fa98dcfcc2

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
33KB

MD5
6584ed4d4c8f69ba710b148b1c161b45

SHA1
74a4ed8ed90f18554968516a0399adb8f1930025

SHA256
67f781c9fcb71fc27986a478e1a683a626eaa36e52c8659b6354734d4df6c6ef

SHA512
797f471cda9682db2689cc8cbe8f172df046caffa967134e841c03a4be4e62c4094a37fa4ef3490939c4aacd3eee358f78e1a6e099e6bc8c983fc9fa98dcfcc2

Download Submit
memory/224-136-0x0000000000400000-0x0000000000596000-memory.dmp

Filesize
1.6MB

Download
memory/3124-140-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3732-142-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3732-143-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads