healer | 766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13

General

Target

766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe
Size

376KB
MD5

1f8be4219e07c30eb93f9c40a785d33a
SHA1

e14199dcbbbd746ec3b4a1bb57157ca392e47a1b
SHA256

766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13
SHA512

687e85b06258540a925c14210e92f9d090b1d20cfef7616a1c3efd2cf4eae3a2cbe87d5beca8ef94e5d65ab0fa9482628dda25e7281d252b78df4db5bf55ca08
SSDEEP

6144:Kfy+bnr+lp0yN90QEqjAnObhx5eUJkLvD5NESb6Y09e5MJRkyMv4Tn:xMrly90uAnox3kL75SSbx0k5MJRkF4b

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/0x0008000000023ca6-12.dat	healer
behavioral1/memory/4036-15-0x00000000006F0000-0x00000000006FA000-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"	k9158381.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	k9158381.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	k9158381.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	k9158381.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	k9158381.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	k9158381.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/0x0007000000023ca7-19.dat	family_redline
behavioral1/memory/3712-21-0x0000000000C40000-0x0000000000C68000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 3 IoCs

pid	Process
1112	y5724817.exe
4036	k9158381.exe
3712	l6026235.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"	k9158381.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\\\""	766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.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\\\""	y5724817.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4928	sc.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	l6026235.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	y5724817.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4036	k9158381.exe
4036	k9158381.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4036	k9158381.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 1112	4664	766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe	85
PID 4664 wrote to memory of 1112	4664	766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe	85
PID 4664 wrote to memory of 1112	4664	766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe	85
PID 1112 wrote to memory of 4036	1112	y5724817.exe	86
PID 1112 wrote to memory of 4036	1112	y5724817.exe	86
PID 1112 wrote to memory of 3712	1112	y5724817.exe	98
PID 1112 wrote to memory of 3712	1112	y5724817.exe	98
PID 1112 wrote to memory of 3712	1112	y5724817.exe	98

C:\Users\Admin\AppData\Local\Temp\766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe
"C:\Users\Admin\AppData\Local\Temp\766c25a23ed3e7527bc8c69526af4c55b9125538b20c6c6e034333c7fc505c13.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y5724817.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y5724817.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1112
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k9158381.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k9158381.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4036
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l6026235.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l6026235.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3712

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:4928

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\y5724817.exe

Filesize
204KB

MD5
96121bc4254c436161f93495b0a7d61d

SHA1
f94ba508467b5d0768ffca06e65981520414bb86

SHA256
535e166ac138bd10d76bf180fe04e9c5465637d899144d3b81cca51bbfc4d8dc

SHA512
3636a11ef4b149cd1608c1704b803854c3fae8235f80d86f87683a168dc1f33d45cbc4a48d69d79afb8d2b8e3e52a85bfec4445515635b6d4866bb3481e294f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k9158381.exe

Filesize
11KB

MD5
7e93bacbbc33e6652e147e7fe07572a0

SHA1
421a7167da01c8da4dc4d5234ca3dd84e319e762

SHA256
850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

SHA512
250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l6026235.exe

Filesize
136KB

MD5
8f30f7f88229560306c5959c605316de

SHA1
36f26a905a9743f6dd1608e39b37d1116cafcc0a

SHA256
3a616b322cc7ca87e349b8ceabb92062ed0388308d1f9221e9cdb6f65c86b6f7

SHA512
267d0f3954c416dc994e3c3e6790f6997598b71fdb7172e87265b31b7593fb29e9eb4cc295a38b969d1f2aa131b5a67525e0f4bb51a61a3dd82b7c63b867f9a0

Download Submit
memory/3712-21-0x0000000000C40000-0x0000000000C68000-memory.dmp

Filesize
160KB

Download
memory/3712-22-0x0000000007F70000-0x0000000008588000-memory.dmp

Filesize
6.1MB

Download
memory/3712-23-0x00000000079B0000-0x00000000079C2000-memory.dmp

Filesize
72KB

Download
memory/3712-24-0x0000000007AE0000-0x0000000007BEA000-memory.dmp

Filesize
1.0MB

Download
memory/3712-25-0x0000000007A10000-0x0000000007A4C000-memory.dmp

Filesize
240KB

Download
memory/3712-26-0x0000000004F80000-0x0000000004FCC000-memory.dmp

Filesize
304KB

Download
memory/4036-14-0x00007FFBB84C3000-0x00007FFBB84C5000-memory.dmp

Filesize
8KB

Download
memory/4036-15-0x00000000006F0000-0x00000000006FA000-memory.dmp

Filesize
40KB

Download
memory/4036-16-0x00007FFBB84C3000-0x00007FFBB84C5000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads