healer | f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4

General

Target

f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe
Size

538KB
MD5

ae3bad0bcc02c1175277897be996b49b
SHA1

41935127ea52426cb028575129033c5aafc5b2b0
SHA256

f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4
SHA512

277038a562306b678276c9f8c3f6e8bd0a8a89436285dcee71667fc40185928b79fd327bcf21f07c4a3a0a30247afd9f1423d1c3840cdbfef55a8cd0c501768c
SSDEEP

12288:sMroy9060JjzSUAxzmgvp6c0N6iF5vO5Zl3b:kyV0JjO3ZWN75vOP

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 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000023c63-12.dat	healer
behavioral1/memory/3980-15-0x0000000000A70000-0x0000000000A7A000-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\DisableBehaviorMonitoring = "1"	rCN0258.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	rCN0258.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	rCN0258.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	rCN0258.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	rCN0258.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	rCN0258.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/0x0007000000023c64-19.dat	family_redline
behavioral1/memory/2596-21-0x00000000006A0000-0x00000000006D2000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 3 IoCs

pid	Process
4820	vYa2845.exe
3980	rCN0258.exe
2596	tbp39Sv.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"	rCN0258.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\\\""	f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.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\\\""	vYa2845.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	f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vYa2845.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tbp39Sv.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3980	rCN0258.exe
3980	rCN0258.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3980	rCN0258.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 4820	116	f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe	85
PID 116 wrote to memory of 4820	116	f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe	85
PID 116 wrote to memory of 4820	116	f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe	85
PID 4820 wrote to memory of 3980	4820	vYa2845.exe	86
PID 4820 wrote to memory of 3980	4820	vYa2845.exe	86
PID 4820 wrote to memory of 2596	4820	vYa2845.exe	93
PID 4820 wrote to memory of 2596	4820	vYa2845.exe	93
PID 4820 wrote to memory of 2596	4820	vYa2845.exe	93

C:\Users\Admin\AppData\Local\Temp\f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe
"C:\Users\Admin\AppData\Local\Temp\f307a90e97f39948643f20a1ca72626ec06ef4c24709dbb3616146be8e8598f4.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:116
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vYa2845.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vYa2845.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4820
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rCN0258.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rCN0258.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3980
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\tbp39Sv.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\tbp39Sv.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2596

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\vYa2845.exe

Filesize
202KB

MD5
65e1381101085316dfc02b78fee50080

SHA1
21abe435b796f4954d3a6cd867a66894d81df04d

SHA256
ba8f14fc02b7d96828d1894118a83c5a73d670fa09d77eae2c907c597123fd8b

SHA512
e1a5dd85fa8b814520c3bc3d479c65b2bb11baba681f796118dc8955e60f27d01ea78de563baf4f2272b4b8f702b5c936b5f8a9504f2f55755202356503518c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rCN0258.exe

Filesize
11KB

MD5
7e93bacbbc33e6652e147e7fe07572a0

SHA1
421a7167da01c8da4dc4d5234ca3dd84e319e762

SHA256
850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

SHA512
250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\tbp39Sv.exe

Filesize
175KB

MD5
dd0c9e110c68ce1fa5308979ef718f7b

SHA1
473deb8069f0841d47b74b7f414dacc6f96eca78

SHA256
dc28c9d9ab3f30222ed59f3991c5981bec40604e725ece488d8599eef917a7b3

SHA512
29bd76da816b13b31c938a3f8699d2f5942a24c9ef61fddcac490e0a30f82c1a4a76ca9a6866a8d2c8e57566f66b3aea31e7f70646d3ebef63c63a06f8fe2236

Download Submit
memory/2596-21-0x00000000006A0000-0x00000000006D2000-memory.dmp

Filesize
200KB

Download
memory/2596-22-0x0000000005660000-0x0000000005C78000-memory.dmp

Filesize
6.1MB

Download
memory/2596-23-0x0000000005170000-0x000000000527A000-memory.dmp

Filesize
1.0MB

Download
memory/2596-24-0x00000000050A0000-0x00000000050B2000-memory.dmp

Filesize
72KB

Download
memory/2596-25-0x0000000005100000-0x000000000513C000-memory.dmp

Filesize
240KB

Download
memory/2596-26-0x0000000005280000-0x00000000052CC000-memory.dmp

Filesize
304KB

Download
memory/3980-14-0x00007FFB27693000-0x00007FFB27695000-memory.dmp

Filesize
8KB

Download
memory/3980-15-0x0000000000A70000-0x0000000000A7A000-memory.dmp

Filesize
40KB

Download
memory/3980-16-0x00007FFB27693000-0x00007FFB27695000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads