c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefa

General

Target

c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
Size

260KB
MD5

cae51f7214ea8290c72288d86693b160
SHA1

e32478386fbb7d2307d3f7df9f18d842db70f5a3
SHA256

c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefa
SHA512

7bb34ed2887a941c6b47591d4d5fbbb55cd43bf308b16b60e25f9ac4cfbd8ca25c9e7c9bf31e8dc41629787e0dfb86f4db77aa0bac4d6eaa465961508664ee4a
SSDEEP

1536:GxtnE6acoso8vzxoSBUES5SwziMYiHzhtAia5QrMsQtCnt8qiJPQsZSTorlN33nn:K/vFYi9yQct1iJPQSrl1LtYFroxTSfY

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 3 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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	9dad8.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	4e0c3.exe

Executes dropped EXE 3 IoCs

pid	Process
5064	9dad8.exe
2268	4e0c3.exe
4276	4e0c3.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "9dad8.exe"	9dad8.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\9dad8.exe	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
File opened for modification	C:\Windows\SysWOW64\9dad8.exe	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
File opened for modification	C:\Windows\SysWOW64\	9dad8.exe
File created	C:\Windows\SysWOW64\4e0c3.exe	9dad8.exe
File opened for modification	C:\Windows\SysWOW64\4e0c3.exe	9dad8.exe
File opened for modification	C:\Windows\SysWOW64\4e0c3.exe	4e0c3.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2624-0-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/files/0x0007000000023437-7.dat	upx
behavioral2/memory/2624-39-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/2268-74-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/5064-76-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/2268-79-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/4276-82-0x0000000000400000-0x0000000000442000-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 4 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	4e0c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4e0c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9dad8.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	4e0c3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4e0c3.exe
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	9dad8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9dad8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5064	9dad8.exe
5064	9dad8.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2624	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
5064	9dad8.exe
2268	4e0c3.exe
4276	4e0c3.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 5064	2624	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe	82
PID 2624 wrote to memory of 5064	2624	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe	82
PID 2624 wrote to memory of 5064	2624	c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe	82
PID 5064 wrote to memory of 2268	5064	9dad8.exe	83
PID 5064 wrote to memory of 2268	5064	9dad8.exe	83
PID 5064 wrote to memory of 2268	5064	9dad8.exe	83
PID 2268 wrote to memory of 4276	2268	4e0c3.exe	84
PID 2268 wrote to memory of 4276	2268	4e0c3.exe	84
PID 2268 wrote to memory of 4276	2268	4e0c3.exe	84

C:\Users\Admin\AppData\Local\Temp\c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
"C:\Users\Admin\AppData\Local\Temp\c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\9dad8.exe
  "C:\Windows\system32\9dad8.exe" killauto~~c4b92f45b28fe30ca4c9d637b78ec878852ba4c8036312591446149ef0c3fefaN.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5064
- - C:\Windows\SysWOW64\4e0c3.exe
    "C:\Windows\system32\4e0c3.exe" killauto~~9dad8.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2268
  - - C:\Windows\SysWOW64\4e0c3.exe
      "C:\Windows\system32\4e0c3.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:4276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\9dad8.exe

Filesize
260KB

MD5
6b5d0a907146cba4c04b1400b51d6a47

SHA1
8a8ac4d42e6053d01755b2e7b70d3470c61b1be9

SHA256
94d67e0e9bfeba59e953fe94f0e4a92350d043b3b4ac28b5db557d0e0e8843f8

SHA512
cf8c94a3b06fae05b78bbfa5d3693cd2089adeda769cd00d3bb6f4634b0dde634b4c645576bdc12b02f3141c74e13abd9afe8deb61f277fe2c9d82acd0760237

Download Submit
memory/2268-74-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2268-79-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2624-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2624-39-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4276-82-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/5064-76-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads