healer | 5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b

General

Target

5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe
Size

376KB
MD5

a9c2bdc8b1d1120f5d49740019a5bd33
SHA1

9d7c2aecbeb91e7d06c8de1523e45c24dfb1c7cb
SHA256

5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b
SHA512

81dc7ba819c550ba162453fcda43ed3d7fd76462d832cd4cb277b3a0b2dff67d38d79e79ac9a10e00ee0719a473aaac3c5191639d21eec95a02070496d0c1682
SSDEEP

6144:Kuy+bnr+4p0yN90QExNKSEXkwH4MDtIA/WDh7LDlQvXVYgkScJ28qzKvkx6lO:+MrAy90zekwYeZ6glYF21+vkf

Score

10^/10

healer redline discovery dropper evasion infostealer persistence trojan

Malware Config

Signatures

Detects Healer an antivirus disabler dropper 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000023cae-12.dat	healer
behavioral1/memory/2456-15-0x00000000006F0000-0x00000000006FA000-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\DisableRealtimeMonitoring = "1"	k3393124.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	k3393124.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	k3393124.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	k3393124.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	k3393124.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	k3393124.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/0x0007000000023caf-18.dat	family_redline
behavioral1/memory/3240-20-0x0000000000BE0000-0x0000000000C08000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 3 IoCs

pid	Process
4188	y8515520.exe
2456	k3393124.exe
3240	l3050386.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"	k3393124.exe

Adds Run key to start application 2 TTPs 2 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\\\""	5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.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\\\""	y8515520.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	y8515520.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	l3050386.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2456	k3393124.exe
2456	k3393124.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	k3393124.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 4188	732	5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe	83
PID 732 wrote to memory of 4188	732	5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe	83
PID 732 wrote to memory of 4188	732	5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe	83
PID 4188 wrote to memory of 2456	4188	y8515520.exe	84
PID 4188 wrote to memory of 2456	4188	y8515520.exe	84
PID 4188 wrote to memory of 3240	4188	y8515520.exe	95
PID 4188 wrote to memory of 3240	4188	y8515520.exe	95
PID 4188 wrote to memory of 3240	4188	y8515520.exe	95

C:\Users\Admin\AppData\Local\Temp\5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe
"C:\Users\Admin\AppData\Local\Temp\5b853ad3d5604aaaa16e5fbcf0c5e33ccc8c1e460b9ae7c24d4338ff173e7f8b.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:732
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y8515520.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y8515520.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4188
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k3393124.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k3393124.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2456
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l3050386.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l3050386.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3240

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\y8515520.exe

Filesize
204KB

MD5
f2bc8495311517940bc1928c47c19ec9

SHA1
6cda7aff0e31a9235722fb7db90bcd94195ca468

SHA256
31d22fefe74d8e1dc84f4ef120710174c6958cfebfccc377e7ec36f512ea886d

SHA512
5fa14e0d3b4b88c00989adaac40962a2688a100ed39b2da3ed7f2110ffda54d15035d9b0d6c5788fcb637ab0ec5e1a4a7fe9f725d31e92b0e27bc0951000435a

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k3393124.exe

Filesize
11KB

MD5
7e93bacbbc33e6652e147e7fe07572a0

SHA1
421a7167da01c8da4dc4d5234ca3dd84e319e762

SHA256
850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

SHA512
250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l3050386.exe

Filesize
136KB

MD5
8f30f7f88229560306c5959c605316de

SHA1
36f26a905a9743f6dd1608e39b37d1116cafcc0a

SHA256
3a616b322cc7ca87e349b8ceabb92062ed0388308d1f9221e9cdb6f65c86b6f7

SHA512
267d0f3954c416dc994e3c3e6790f6997598b71fdb7172e87265b31b7593fb29e9eb4cc295a38b969d1f2aa131b5a67525e0f4bb51a61a3dd82b7c63b867f9a0

Download Submit
memory/2456-14-0x00007FFC50553000-0x00007FFC50555000-memory.dmp

Filesize
8KB

Download
memory/2456-15-0x00000000006F0000-0x00000000006FA000-memory.dmp

Filesize
40KB

Download
memory/3240-20-0x0000000000BE0000-0x0000000000C08000-memory.dmp

Filesize
160KB

Download
memory/3240-21-0x0000000007EB0000-0x00000000084C8000-memory.dmp

Filesize
6.1MB

Download
memory/3240-22-0x0000000007940000-0x0000000007952000-memory.dmp

Filesize
72KB

Download
memory/3240-23-0x0000000007A70000-0x0000000007B7A000-memory.dmp

Filesize
1.0MB

Download
memory/3240-24-0x00000000079A0000-0x00000000079DC000-memory.dmp

Filesize
240KB

Download
memory/3240-25-0x0000000004F00000-0x0000000004F4C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads