ff6353b97df24c70f01f79c12c29d597c8fdf84675fa4ccae6994c5e8e9798cf

General

Target
iceix_1.2.6.0.vir.exe
Size 502KB
Sample200719-xtthrcykas
SHA256 ff6353b97df24c70f01f79c12c29d597c8fdf84675fa4ccae6994c5e8e9798cf
MD5 fa0ac95c9e929f9a1933877c05be4a60
SHA1 3d7f5484ec822ea8f9dd021f4e4f18fa08dfc562
SHA512 8c75e13f65ecd02e255ff9acd0ec11166f0a9ba5a067160555db847dfcc1bc4d9f3a3b0cd3c50bc7eab074acd3d50164e6f61bb9537f17803c6f2e6c5b60d44d
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 3960	3940	iceix_1.2.6.0.vir.exe	67
PID 3940 wrote to memory of 3960	3940	iceix_1.2.6.0.vir.exe	67
PID 3940 wrote to memory of 3960	3940	iceix_1.2.6.0.vir.exe	67
PID 3960 wrote to memory of 3544	3960	1.scr	68
PID 3960 wrote to memory of 3544	3960	1.scr	68
PID 3960 wrote to memory of 3544	3960	1.scr	68
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3552	3960	1.scr	69
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70
PID 3960 wrote to memory of 3520	3960	1.scr	70

Executes dropped EXE 2 IoCs

pid	Process
3960	1.scr
3520	1.scr

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3960	1.scr
3960	1.scr
3552	iexplore.exe
3552	iexplore.exe
3552	iexplore.exe
3552	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3960	1.scr
3960	1.scr

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3960 set thread context of 3552	3960	1.scr	69
PID 3960 set thread context of 3520	3960	1.scr	70

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3552-4-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/3552-7-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/3552-8-0x0000000000400000-0x000000000043C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	iceix_1.2.6.0.vir.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	iceix_1.2.6.0.vir.exe

Checks whether UAC is enabled 1 IoCs

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\iceix_1.2.6.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\iceix_1.2.6.0.vir.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Adds Run key to start application
PID:3940
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.scr
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.scr
  2⤵
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetThreadContext
  PID:3960
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:3544
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Suspicious use of SetWindowsHookEx
    - Checks whether UAC is enabled
    PID:3552
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.scr
    C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.scr
    3⤵
    - Executes dropped EXE
    PID:3520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3520-6-0x0000000000400000-0x000000000A040000-memory.dmp

Download

memory/3520-11-0x0000000000400000-0x000000000A040000-memory.dmp

Download

memory/3552-4-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3552-7-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3552-8-0x0000000000400000-0x000000000043C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads