icexloader | 678c05e87b07f6f9a979ae0f032956baf9ccb338aec4b50af77284d62fc97688

General

Target

b603ce4a15e89ee253d97c1b1deb4941.exe
Size

1.1MB
MD5

b603ce4a15e89ee253d97c1b1deb4941
SHA1

9a436e302870bbb2460fb6824333a170df577b95
SHA256

678c05e87b07f6f9a979ae0f032956baf9ccb338aec4b50af77284d62fc97688
SHA512

3e82f7b6db17b094543e5e29d6c11c643b403809ff3ea6f541b71a778c498664afe63e1a5196b1c2d058233cfad3fd88851629490809d3234a0ca9f1787d2f93

Score

10^/10

Malware Config

Signatures

Detects IceXLoader v3.0 4 IoCs

resource	yara_rule
behavioral2/memory/3152-141-0x0000000000400000-0x0000000000451000-memory.dmp	family_icexloader_v3
behavioral2/memory/3152-143-0x0000000000400000-0x0000000000451000-memory.dmp	family_icexloader_v3
behavioral2/memory/3152-144-0x0000000000400000-0x0000000000451000-memory.dmp	family_icexloader_v3
behavioral2/memory/3152-145-0x0000000000400000-0x0000000000451000-memory.dmp	family_icexloader_v3

icexloader
IceXLoader is a downloader used to deliver other malware families.
loader icexloader

Checks computer location settings 2 TTPs 1 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-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	b603ce4a15e89ee253d97c1b1deb4941.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bob = "\"C:\\Users\\Admin\\AppData\\Roaming\\bob.exe\""	b603ce4a15e89ee253d97c1b1deb4941.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2464	b603ce4a15e89ee253d97c1b1deb4941.exe
1712	powershell.exe
1712	powershell.exe
2464	b603ce4a15e89ee253d97c1b1deb4941.exe
2464	b603ce4a15e89ee253d97c1b1deb4941.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	b603ce4a15e89ee253d97c1b1deb4941.exe
Token: SeDebugPrivilege	1712	powershell.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe
Token: SeRemoteShutdownPrivilege	3152	InstallUtil.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 1712	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	82
PID 2464 wrote to memory of 1712	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	82
PID 2464 wrote to memory of 1712	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	82
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87
PID 2464 wrote to memory of 3152	2464	b603ce4a15e89ee253d97c1b1deb4941.exe	87

C:\Users\Admin\AppData\Local\Temp\b603ce4a15e89ee253d97c1b1deb4941.exe
"C:\Users\Admin\AppData\Local\Temp\b603ce4a15e89ee253d97c1b1deb4941.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1712
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3152

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1712-136-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/1712-138-0x0000000007880000-0x0000000007EFA000-memory.dmp

Filesize
6.5MB

Download
memory/1712-133-0x0000000004AA0000-0x0000000004AD6000-memory.dmp

Filesize
216KB

Download
memory/1712-134-0x0000000005110000-0x0000000005738000-memory.dmp

Filesize
6.2MB

Download
memory/1712-135-0x00000000058B0000-0x0000000005916000-memory.dmp

Filesize
408KB

Download
memory/1712-139-0x0000000006540000-0x000000000655A000-memory.dmp

Filesize
104KB

Download
memory/1712-137-0x0000000006050000-0x000000000606E000-memory.dmp

Filesize
120KB

Download
memory/2464-130-0x0000000000220000-0x0000000000340000-memory.dmp

Filesize
1.1MB

Download
memory/2464-131-0x00000000050F0000-0x0000000005112000-memory.dmp

Filesize
136KB

Download
memory/3152-141-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3152-143-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3152-144-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3152-145-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

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