xtremerat | 1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2

Analysis

max time kernel
23s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
31-10-2022 00:55

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General

Target

1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Size

231KB
MD5

a21e5d4f4ecc934d8b3916cc86a8e0e1
SHA1

da9de18bb4c68469ccd9add1450e52dbe024d063
SHA256

1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2
SHA512

be3182a28bf7c0b0c91abe419a1b4b230728cfc7d849b679ecf8ac2f3fd143a413ad024a4513dc5d778d8365a697a1db3a291bb92ffc06d0c7fb96ec4383391d
SSDEEP

6144:Wg572n+aCyIK3ccnMxjyHJ97Z5R+4MBhJCs:j5yW1K3Dns6xN+Rr8s

Score

10^/10

xtremerat bootkit persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

gaiaonline.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/268-62-0x0000000013140000-0x000000001315F000-memory.dmp	family_xtremerat
behavioral1/memory/268-63-0x0000000013140000-0x000000001315F000-memory.dmp	family_xtremerat
behavioral1/memory/268-64-0x0000000013140000-0x000000001315F000-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

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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/268-56-0x0000000013140000-0x000000001315F000-memory.dmp	upx
behavioral1/memory/268-60-0x0000000013140000-0x000000001315F000-memory.dmp	upx
behavioral1/memory/268-62-0x0000000013140000-0x000000001315F000-memory.dmp	upx
behavioral1/memory/268-63-0x0000000013140000-0x000000001315F000-memory.dmp	upx
behavioral1/memory/268-64-0x0000000013140000-0x000000001315F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\google = "C:\\Windows\\InstallDir\\Server.exe"	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\iexplorer = "C:\\Windows\\InstallDir\\Server.exe"	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1952 set thread context of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
File created	C:\Windows\InstallDir\Server.exe	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe

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

System Information Discovery
T1082

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 1952 wrote to memory of 268	1952	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	28
PID 268 wrote to memory of 2036	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	29
PID 268 wrote to memory of 2036	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	29
PID 268 wrote to memory of 2036	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	29
PID 268 wrote to memory of 2036	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	29
PID 268 wrote to memory of 2036	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	29
PID 268 wrote to memory of 1844	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	30
PID 268 wrote to memory of 1844	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	30
PID 268 wrote to memory of 1844	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	30
PID 268 wrote to memory of 1844	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	30
PID 268 wrote to memory of 1844	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	30
PID 268 wrote to memory of 2028	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	31
PID 268 wrote to memory of 2028	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	31
PID 268 wrote to memory of 2028	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	31
PID 268 wrote to memory of 2028	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	31
PID 268 wrote to memory of 2028	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	31
PID 268 wrote to memory of 1992	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	32
PID 268 wrote to memory of 1992	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	32
PID 268 wrote to memory of 1992	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	32
PID 268 wrote to memory of 1992	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	32
PID 268 wrote to memory of 1992	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	32
PID 268 wrote to memory of 1984	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	33
PID 268 wrote to memory of 1984	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	33
PID 268 wrote to memory of 1984	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	33
PID 268 wrote to memory of 1984	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	33
PID 268 wrote to memory of 1984	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	33
PID 268 wrote to memory of 308	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	34
PID 268 wrote to memory of 308	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	34
PID 268 wrote to memory of 308	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	34
PID 268 wrote to memory of 308	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	34
PID 268 wrote to memory of 308	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	34
PID 268 wrote to memory of 1372	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	35
PID 268 wrote to memory of 1372	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	35
PID 268 wrote to memory of 1372	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	35
PID 268 wrote to memory of 1372	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	35
PID 268 wrote to memory of 1372	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	35
PID 268 wrote to memory of 1700	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	36
PID 268 wrote to memory of 1700	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	36
PID 268 wrote to memory of 1700	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	36
PID 268 wrote to memory of 1700	268	1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe	36

C:\Users\Admin\AppData\Local\Temp\1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
"C:\Users\Admin\AppData\Local\Temp\1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe
  "C:\Users\Admin\AppData\Local\Temp\1a8cac16782fb83f958f805bcffb5ca8c34049a1a98e0d54d26dc411eaefd6a2.exe"
  2⤵
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:268
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2036
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1844
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2028
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1992
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1984
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:308
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1372
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1700

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/268-56-0x0000000013140000-0x000000001315F000-memory.dmp

Filesize
124KB

Download
memory/268-59-0x0000000075E31000-0x0000000075E33000-memory.dmp

Filesize
8KB

Download
memory/268-60-0x0000000013140000-0x000000001315F000-memory.dmp

Filesize
124KB

Download
memory/268-62-0x0000000013140000-0x000000001315F000-memory.dmp

Filesize
124KB

Download
memory/268-63-0x0000000013140000-0x000000001315F000-memory.dmp

Filesize
124KB

Download
memory/268-64-0x0000000013140000-0x000000001315F000-memory.dmp

Filesize
124KB

Download
memory/1952-61-0x0000000001CD0000-0x0000000001CD8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads