healer | 9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7

General

Target

9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe
Size

821KB
MD5

2ec0cc03412324be47c5d88d97133451
SHA1

6506cf125e9a8b56e79c4a950fd331c02e05656b
SHA256

9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7
SHA512

0e658596d8e1a96be9c408c1960967ee71516ce10d689da6c7dd9f825ad8d5820f6a301e77841be55bb955b910067a7e7db153197cc0710e1cccb0a0466bdaeb
SSDEEP

12288:MMrdy90H7ChlUGmtI29aWAnhJqZwuP5ixn8/2uZivep2jgZo4TrB02Fl5r7t:JysGt2oGwuP5iFOZWe2cZo4fB0oP7t

Score

10^/10

healer redline dubna discovery dropper evasion infostealer persistence trojan

Malware Config

Extracted

Family

redline

Botnet

dubna

C2

193.233.20.11:4131

Attributes

auth_value
f324b1269094b7462e56bab025f032f4

Signatures

Detects Healer an antivirus disabler dropper 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000023cce-19.dat	healer
behavioral1/memory/8-22-0x0000000000510000-0x000000000051A000-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
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	aon77.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	aon77.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	aon77.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	aon77.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	aon77.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	aon77.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/0x0007000000023ccf-25.dat	family_redline
behavioral1/memory/3316-27-0x0000000000730000-0x0000000000762000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 4 IoCs

pid	Process
3168	dEU03.exe
4564	dSk37.exe
8	aon77.exe
3316	byU93.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"	aon77.exe

Adds Run key to start application 2 TTPs 3 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_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	dSk37.exe
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\\\""	9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.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\\\""	dEU03.exe

Launches sc.exe 1 IoCs

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

pid	Process
1444	sc.exe

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	9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dEU03.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dSk37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	byU93.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
8	aon77.exe
8	aon77.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	8	aon77.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 3168	3384	9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe	84
PID 3384 wrote to memory of 3168	3384	9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe	84
PID 3384 wrote to memory of 3168	3384	9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe	84
PID 3168 wrote to memory of 4564	3168	dEU03.exe	86
PID 3168 wrote to memory of 4564	3168	dEU03.exe	86
PID 3168 wrote to memory of 4564	3168	dEU03.exe	86
PID 4564 wrote to memory of 8	4564	dSk37.exe	87
PID 4564 wrote to memory of 8	4564	dSk37.exe	87
PID 4564 wrote to memory of 3316	4564	dSk37.exe	95
PID 4564 wrote to memory of 3316	4564	dSk37.exe	95
PID 4564 wrote to memory of 3316	4564	dSk37.exe	95

C:\Users\Admin\AppData\Local\Temp\9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe
"C:\Users\Admin\AppData\Local\Temp\9af4825cb7e0c49d9bd032faabb0568f924303ad5dff05e94399e2137eb811d7.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dEU03.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dEU03.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3168
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dSk37.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dSk37.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4564
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aon77.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aon77.exe
      4⤵
      Modifies Windows Defender Real-time Protection settings
      Executes dropped EXE
      Windows security modification
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:8
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\byU93.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\byU93.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:3316

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:1444

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\dEU03.exe

Filesize
592KB

MD5
78f9a194ca6ada8ff8db51387f080418

SHA1
9caf087c9ed25a3fac2e864c9a9cfd76cc111a2f

SHA256
c6d6ac7967f11863adb22bd2dc12a09a82e430e5e0d488ff1422211cf8098632

SHA512
707862f8bd701c4dda85c7c10954e59587f8500fdbfcf39eff01dca485e72d9b92c2ab3418eeebd8eb79e4c7c92f290c39ae0f06bc619cad82d3bae0ed84a66f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dSk37.exe

Filesize
202KB

MD5
f8f44d0435301c519ccb975f99e300b5

SHA1
8560daff09647630eee042513c77584ad36b4045

SHA256
b90192f6f9742e48247434d53335b46fa69537d85c5363f90eb134f507989873

SHA512
55647c323ef0764f8710331fe356fdde37c50e42dab52c8a64ae40e78ebcc983dc4e3b97f9b2109556ded8eb816a61b4d50714d77378dfabf70f84fbc8627784

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aon77.exe

Filesize
11KB

MD5
7e93bacbbc33e6652e147e7fe07572a0

SHA1
421a7167da01c8da4dc4d5234ca3dd84e319e762

SHA256
850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

SHA512
250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\byU93.exe

Filesize
175KB

MD5
ef8079cf160510d0da7162bc08f753d8

SHA1
e786cc8bee83e4a37433ddccf9d3540e1f6533fe

SHA256
a6416ca607f03e7d02dd9c8b546113c71f421c0ba8438dafb941d25f8cf2c9e6

SHA512
959b08126358527b794a276f6e9f818250f888d9f108b46766f6c2e50186acc8f406acbeb94ca97b5f0e329b27f3851003446715d5d040b5c0fef4010011a2c3

Download Submit
memory/8-21-0x00007FFC36853000-0x00007FFC36855000-memory.dmp

Filesize
8KB

Download
memory/8-22-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/3316-27-0x0000000000730000-0x0000000000762000-memory.dmp

Filesize
200KB

Download
memory/3316-28-0x00000000056E0000-0x0000000005CF8000-memory.dmp

Filesize
6.1MB

Download
memory/3316-29-0x0000000005200000-0x000000000530A000-memory.dmp

Filesize
1.0MB

Download
memory/3316-30-0x0000000005130000-0x0000000005142000-memory.dmp

Filesize
72KB

Download
memory/3316-31-0x0000000005190000-0x00000000051CC000-memory.dmp

Filesize
240KB

Download
memory/3316-32-0x0000000005310000-0x000000000535C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads