healer | 21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e

General

Target

21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe
Size

1000KB
MD5

24dc30daa9b9943c6baa1f249cdf1800
SHA1

1544731fa28967736dbd2ba0016998fbcff566de
SHA256

21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e
SHA512

641b3160c791faef53f0040da178e3517aea3224e2a494ca4d267c5d2d86703897520b8003af13b562420ca2e5339609296cb9e1d6e9bb51183dfb9dc4f1f1f1
SSDEEP

24576:Ty2hvlnvHySqydpe7x8lt0Zht3LFYC5ZKSzqQzYfi:m2hvlnKJydpe7GOdLF7Zty

Score

10^/10

healer redline dubka discovery dropper evasion infostealer persistence trojan

Malware Config

Extracted

Family

redline

Botnet

dubka

C2

193.233.20.13:4136

Attributes

auth_value
e5a9421183a033f283b2f23139b471f0

Signatures

Detects Healer an antivirus disabler dropper 19 IoCs

resource	yara_rule
behavioral1/files/0x0008000000023c88-26.dat	healer
behavioral1/memory/232-28-0x0000000000F30000-0x0000000000F3A000-memory.dmp	healer
behavioral1/memory/3884-34-0x00000000023B0000-0x00000000023CA000-memory.dmp	healer
behavioral1/memory/3884-36-0x0000000002510000-0x0000000002528000-memory.dmp	healer
behavioral1/memory/3884-37-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-42-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-64-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-63-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-60-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-59-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-56-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-54-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-52-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-50-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-48-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-46-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-44-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-40-0x0000000002510000-0x0000000002522000-memory.dmp	healer
behavioral1/memory/3884-38-0x0000000002510000-0x0000000002522000-memory.dmp	healer

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

Modifies Windows Defender Real-time Protection settings 3 TTPs 12 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	kUS38iO.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	kUS38iO.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	kUS38iO.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	kUS38iO.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	mOj96mp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	mOj96mp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	kUS38iO.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	kUS38iO.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	mOj96mp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	mOj96mp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	mOj96mp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	mOj96mp.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/0x0007000000023c85-69.dat	family_redline
behavioral1/memory/4108-71-0x0000000000B00000-0x0000000000B32000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 6 IoCs

pid	Process
2776	dUe1253.exe
32	dak9788.exe
1272	dvf1726.exe
232	kUS38iO.exe
3884	mOj96mp.exe
4108	nYo74cz.exe

Windows security modification 2 TTPs 3 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"	kUS38iO.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	mOj96mp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	mOj96mp.exe

Adds Run key to start application 2 TTPs 4 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\\\""	21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	dUe1253.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	dak9788.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup3 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP003.TMP\\\""	dvf1726.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4000	3884	WerFault.exe	98

System Location Discovery: System Language Discovery 1 TTPs 6 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	dak9788.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dvf1726.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mOj96mp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nYo74cz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dUe1253.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
232	kUS38iO.exe
232	kUS38iO.exe
3884	mOj96mp.exe
3884	mOj96mp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	232	kUS38iO.exe
Token: SeDebugPrivilege	3884	mOj96mp.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 2776	548	21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe	85
PID 548 wrote to memory of 2776	548	21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe	85
PID 548 wrote to memory of 2776	548	21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe	85
PID 2776 wrote to memory of 32	2776	dUe1253.exe	86
PID 2776 wrote to memory of 32	2776	dUe1253.exe	86
PID 2776 wrote to memory of 32	2776	dUe1253.exe	86
PID 32 wrote to memory of 1272	32	dak9788.exe	88
PID 32 wrote to memory of 1272	32	dak9788.exe	88
PID 32 wrote to memory of 1272	32	dak9788.exe	88
PID 1272 wrote to memory of 232	1272	dvf1726.exe	89
PID 1272 wrote to memory of 232	1272	dvf1726.exe	89
PID 1272 wrote to memory of 3884	1272	dvf1726.exe	98
PID 1272 wrote to memory of 3884	1272	dvf1726.exe	98
PID 1272 wrote to memory of 3884	1272	dvf1726.exe	98
PID 32 wrote to memory of 4108	32	dak9788.exe	103
PID 32 wrote to memory of 4108	32	dak9788.exe	103
PID 32 wrote to memory of 4108	32	dak9788.exe	103

C:\Users\Admin\AppData\Local\Temp\21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe
"C:\Users\Admin\AppData\Local\Temp\21e0902c31b6b321e9a045be36227c14996f7cc9f4740dd4a8d8d804c699433e.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dUe1253.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dUe1253.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dak9788.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dak9788.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:32
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\dvf1726.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\dvf1726.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1272
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\kUS38iO.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\kUS38iO.exe
        5⤵
        Modifies Windows Defender Real-time Protection settings
        Executes dropped EXE
        Windows security modification
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:232
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\mOj96mp.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\mOj96mp.exe
        5⤵
        Modifies Windows Defender Real-time Protection settings
        Executes dropped EXE
        Windows security modification
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3884
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3884 -s 1012
        6⤵
        Program crash
        
        PID:4000
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\nYo74cz.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\nYo74cz.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:4108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3884 -ip 3884
1⤵
PID:4392

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\dUe1253.exe

Filesize
855KB

MD5
266c9c1eaf4536d4e20164c377eedff8

SHA1
cc9a3a192a123d63a8111062247b19f8877d2d62

SHA256
62fcfe06ee39399e76acc22cca63a954d199f86ae75ce444e22340ad4c74a3e3

SHA512
1d1200d3a5c29eb7b8954316d204ef052f6f035cebb1d5f2216b849a49e22be279f84f3a16e1936ca5a7c7d73338b0d5e1bc56614616789f3d190cc7ecaae26c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dak9788.exe

Filesize
500KB

MD5
37534bf1700bbdfdfcd98b7e1794f38a

SHA1
0041ea44c9622f018e4e0b35267ee1590ff216ef

SHA256
6dcc1b7dc4866004ad9e5a2194bdadf4ece217d8575408be489121cdea5a1b72

SHA512
b030f6c53f70210d901977d02884023cdfa787382146cebd1fb30a7890e9a072342cb03e035ff1a64749036b83595dee41e533333e5d0c022a1e2c0cc79a0f4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\dvf1726.exe

Filesize
355KB

MD5
8d39a8d441cfc2c288a6442a8813d888

SHA1
901fc52efd48fce037c5a131083e4f64a6d11845

SHA256
5c1c79827dcfb2dc3cf90b980acdf15f82c89b87d090e950924ca81dab055a36

SHA512
8dabdb72fc9440869186bf23e1b24085c797b25bcd3c1b0d8734a981a6fd94666a99d7596fd2a8dc66dea2b64f34f0604b75691ce40b911cf84ca175a8eb4556

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\nYo74cz.exe

Filesize
175KB

MD5
dd0c9e110c68ce1fa5308979ef718f7b

SHA1
473deb8069f0841d47b74b7f414dacc6f96eca78

SHA256
dc28c9d9ab3f30222ed59f3991c5981bec40604e725ece488d8599eef917a7b3

SHA512
29bd76da816b13b31c938a3f8699d2f5942a24c9ef61fddcac490e0a30f82c1a4a76ca9a6866a8d2c8e57566f66b3aea31e7f70646d3ebef63c63a06f8fe2236

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\kUS38iO.exe

Filesize
11KB

MD5
7e93bacbbc33e6652e147e7fe07572a0

SHA1
421a7167da01c8da4dc4d5234ca3dd84e319e762

SHA256
850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

SHA512
250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\mOj96mp.exe

Filesize
295KB

MD5
304766f61a677814af31d2737d118b6f

SHA1
213a7e70d4f7d13e17ddff12152bcfe2c1cc2de4

SHA256
07c33396ed7ec1b40808aae921c50c552dc21b08beabbd5541b9fc9f062e08ac

SHA512
08c9202e988e4f6518a14f37b19eefc8b5901a2c07472140303c48535b67830e956759db3738b3bf63559220cb1e59f8045a2fad5d84530e9cb2e670740441ea

Download Submit
memory/232-28-0x0000000000F30000-0x0000000000F3A000-memory.dmp

Filesize
40KB

Download
memory/3884-54-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-46-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-37-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-42-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-64-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-63-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-60-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-59-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-56-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-35-0x0000000004D70000-0x0000000005314000-memory.dmp

Filesize
5.6MB

Download
memory/3884-52-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-50-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-48-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-36-0x0000000002510000-0x0000000002528000-memory.dmp

Filesize
96KB

Download
memory/3884-44-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-40-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-38-0x0000000002510000-0x0000000002522000-memory.dmp

Filesize
72KB

Download
memory/3884-65-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/3884-67-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/3884-34-0x00000000023B0000-0x00000000023CA000-memory.dmp

Filesize
104KB

Download
memory/4108-71-0x0000000000B00000-0x0000000000B32000-memory.dmp

Filesize
200KB

Download
memory/4108-72-0x0000000005A80000-0x0000000006098000-memory.dmp

Filesize
6.1MB

Download
memory/4108-73-0x00000000055E0000-0x00000000056EA000-memory.dmp

Filesize
1.0MB

Download
memory/4108-74-0x0000000005510000-0x0000000005522000-memory.dmp

Filesize
72KB

Download
memory/4108-75-0x0000000005570000-0x00000000055AC000-memory.dmp

Filesize
240KB

Download
memory/4108-76-0x00000000056F0000-0x000000000573C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads