healer | 21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45

General

Target

21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe
Size

202KB
MD5

3fcd2897bc3a11573f686381062e35f0
SHA1

18f6bc6fba81de189071a7203aa8b1e9334f9c36
SHA256

21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45
SHA512

4cbdd538694df859020c2596473da9b6bc0ffe76d7840aecbe3a46aa85f9cf9bc35fea866387d2347877615db0b070d468a204eb88ffc37bf7d366c1461de179
SSDEEP

3072:Kgy+bnr+O1s5GWp1icKAArDZz4N9GhbkrNEk6KfA7jkFF9j5dBKODlY1:Kgy+bnr+Hp0yN90QEwfAHsF3o

Score

10^/10

healer redline fukia discovery dropper evasion infostealer persistence trojan

Malware Config

Extracted

Family

redline

Botnet

fukia

C2

193.233.20.13:4136

Attributes

auth_value
e5783636fbd9e4f0cf9a017bce02e67e

Signatures

Detects Healer an antivirus disabler dropper 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000023c70-5.dat	healer
behavioral1/memory/1692-8-0x0000000000330000-0x000000000033A000-memory.dmp	healer

Healer
Healer an antivirus disabler dropper.
dropper healer
Healer family
healer

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	iof35PG.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	iof35PG.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	iof35PG.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	iof35PG.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	iof35PG.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	iof35PG.exe

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000023c74-12.dat	family_redline
behavioral1/memory/368-15-0x00000000004F0000-0x0000000000522000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
1692	iof35PG.exe
368	kZk52re.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	iof35PG.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\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kZk52re.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1692	iof35PG.exe
1692	iof35PG.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	iof35PG.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3900 wrote to memory of 1692	3900	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe	83
PID 3900 wrote to memory of 1692	3900	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe	83
PID 3900 wrote to memory of 368	3900	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe	96
PID 3900 wrote to memory of 368	3900	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe	96
PID 3900 wrote to memory of 368	3900	21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe	96

C:\Users\Admin\AppData\Local\Temp\21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe
"C:\Users\Admin\AppData\Local\Temp\21e643051a02ecfb1d0ece8856f159cb1a9b009acbdee3d391cc7e3f94b69a45N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iof35PG.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iof35PG.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1692
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kZk52re.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kZk52re.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:368

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

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:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iof35PG.exe

Filesize
11KB

MD5
7e93bacbbc33e6652e147e7fe07572a0

SHA1
421a7167da01c8da4dc4d5234ca3dd84e319e762

SHA256
850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

SHA512
250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kZk52re.exe

Filesize
175KB

MD5
a5f5c5d6291c7ae9e1d1b7ed1e551490

SHA1
3d06413341893b838549939e15f8f1eec423d71a

SHA256
1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e

SHA512
d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

Download Submit
memory/368-18-0x0000000004F20000-0x0000000004F32000-memory.dmp

Filesize
72KB

Download
memory/368-14-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/368-15-0x00000000004F0000-0x0000000000522000-memory.dmp

Filesize
200KB

Download
memory/368-16-0x0000000005450000-0x0000000005A68000-memory.dmp

Filesize
6.1MB

Download
memory/368-17-0x0000000004FD0000-0x00000000050DA000-memory.dmp

Filesize
1.0MB

Download
memory/368-19-0x0000000004F80000-0x0000000004FBC000-memory.dmp

Filesize
240KB

Download
memory/368-20-0x00000000050E0000-0x000000000512C000-memory.dmp

Filesize
304KB

Download
memory/368-21-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/1692-9-0x00007FFE2DBC3000-0x00007FFE2DBC5000-memory.dmp

Filesize
8KB

Download
memory/1692-8-0x0000000000330000-0x000000000033A000-memory.dmp

Filesize
40KB

Download
memory/1692-7-0x00007FFE2DBC3000-0x00007FFE2DBC5000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads