healer | b21fc8a88033c5d6048ec53a56c2db9684be35a60560d2cb37f931f3bbcf2fed

Analysis

max time kernel
146s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
07/07/2023, 17:51

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General

Target
b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe
Size 529KB
Sample230707-we54eaad66
SHA256 b21fc8a88033c5d6048ec53a56c2db9684be35a60560d2cb37f931f3bbcf2fed
MD5 a04edbdffe7cbe56e8099da8eebb9b0e
SHA1 033226b55c2c41d5c58d7a93318c74e5eae7a0e3
SHA512 8bebdec514a96ab0ac7527008ce77196c9740eacb2811aec3411a7d519a69bd3a0284f703e9b1d2ec778b865cca0d6478c5ba13abef0db9dee5c49724392b1ec
SSDEEP 12288:GpMNgtfvmaRdnQgn9rmzaBvoFa47/nRazCyanAu:GpMNgZvm82gnZya5oFFFySAu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

healer redline furod dropper evasion infostealer persistence trojan

Malware Config

Extracted

Family

redline

Botnet

furod

77.91.68.70:19073

Attributes

auth_value
d2386245fe11799b28b4521492a5879d

Signatures

Detects Healer an antivirus disabler dropper 1 IoCs

resource	yara_rule
behavioral2/memory/312-153-0x00000000001F0000-0x00000000001FA000-memory.dmp	healer

Healer
Healer an antivirus disabler dropper.
dropper healer

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

evasion trojan

Modify Registry

T1112

Modify Existing Service

T1031

Disabling Security Tools

T1089

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	k6052393.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	k6052393.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	k6052393.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	k6052393.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	k6052393.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	k6052393.exe

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

Executes dropped EXE 3 IoCs

pid	Process
2224	y7617076.exe
312	k6052393.exe
4936	l9947470.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	k6052393.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	k6052393.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.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\\\""	b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	y7617076.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\\\""	y7617076.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
312	k6052393.exe
312	k6052393.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	312	k6052393.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2224	1420	b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe	84
PID 1420 wrote to memory of 2224	1420	b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe	84
PID 1420 wrote to memory of 2224	1420	b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe	84
PID 2224 wrote to memory of 312	2224	y7617076.exe	86
PID 2224 wrote to memory of 312	2224	y7617076.exe	86
PID 2224 wrote to memory of 312	2224	y7617076.exe	86
PID 2224 wrote to memory of 4936	2224	y7617076.exe	88
PID 2224 wrote to memory of 4936	2224	y7617076.exe	88
PID 2224 wrote to memory of 4936	2224	y7617076.exe	88

C:\Users\Admin\AppData\Local\Temp\b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe
"C:\Users\Admin\AppData\Local\Temp\b21fc8a88033c5d6048ec53a56c2db9684be35a60560d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y7617076.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y7617076.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k6052393.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k6052393.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:312
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l9947470.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l9947470.exe
    3⤵
    - Executes dropped EXE
    PID:4936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

System.dll.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\System.dll.log
Size 226B
SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
MD5 916851e072fbabc4796d8916c5131092
SHA1 d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA512 07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521
MD5 SHA1 SHA512

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y7617076.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y7617076.exe
Size 261KB
SHA256 6131d79b16dbad4c24555a097e3ca55f5c2e4650f3a67c77c922c17be592a2b6
MD5 d4d6518bb534b31aefe80495e2bfa8c6
SHA1 48fcc38b85728e3aa978b798ebe9d17e4048cfb0
SHA512 eaf503ec514ba970484148500e7615ef29316a2994d09b1e3b4d74a4efe6763b36ee7467ee0ffb03227580b649f30e91e36a3805e4a97dfaf2bd04e3baae31a8
SSDEEP 6144:KFy+bnr+qp0yN90QEGqhUuaHRvHfLIHjKq0:7Mr6y90bCdHfLKuH
MD5 SHA1 SHA512 SSDEEP

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y7617076.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y7617076.exe
Size 261KB
SHA256 6131d79b16dbad4c24555a097e3ca55f5c2e4650f3a67c77c922c17be592a2b6
MD5 d4d6518bb534b31aefe80495e2bfa8c6
SHA1 48fcc38b85728e3aa978b798ebe9d17e4048cfb0
SHA512 eaf503ec514ba970484148500e7615ef29316a2994d09b1e3b4d74a4efe6763b36ee7467ee0ffb03227580b649f30e91e36a3805e4a97dfaf2bd04e3baae31a8
SSDEEP 6144:KFy+bnr+qp0yN90QEGqhUuaHRvHfLIHjKq0:7Mr6y90bCdHfLKuH
MD5 SHA1 SHA512 SSDEEP

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k6052393.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k6052393.exe
Size 96KB
SHA256 c86a2db0de8a29175943623e0f9a35a371495978b8f9c55915ab18ac55918462
MD5 01be805cee48bb9f7c631575a3e79ea3
SHA1 3d8499e6357007f76e872d61d5e6a812d738e6dd
SHA512 c1fdb21f78e00f64a9294529cebeed89eb3bd32f5de63197e2810fdf10d9294694305a0121bab104d9a57b4ef6e0d2ed65a0e4984084d92a5760d8bacd1ca31d
SSDEEP 1536:51hCxmZ3EHDgP5PkYdQ21+KuAEyFopAwC7qQwH7PxM:HkxqU0hzdNxuAEyCAwCejxM
MD5 SHA1 SHA512 SSDEEP

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k6052393.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k6052393.exe
Size 96KB
SHA256 c86a2db0de8a29175943623e0f9a35a371495978b8f9c55915ab18ac55918462
MD5 01be805cee48bb9f7c631575a3e79ea3
SHA1 3d8499e6357007f76e872d61d5e6a812d738e6dd
SHA512 c1fdb21f78e00f64a9294529cebeed89eb3bd32f5de63197e2810fdf10d9294694305a0121bab104d9a57b4ef6e0d2ed65a0e4984084d92a5760d8bacd1ca31d
SSDEEP 1536:51hCxmZ3EHDgP5PkYdQ21+KuAEyFopAwC7qQwH7PxM:HkxqU0hzdNxuAEyCAwCejxM
MD5 SHA1 SHA512 SSDEEP

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l9947470.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l9947470.exe
Size 257KB
SHA256 55d5a4c3b7504caae5e66e65086a0b025fe4ab55185dd3293c1eed8d1e074105
MD5 b02074f0f0a9e80a448ed7299e1334d2
SHA1 b6943ff147635f855a1f329ba0502d108ad3b727
SHA512 2933b46ce199ef6a03e7e899f58ff2ef0a5723a5b20953fb9984b375010967c4c707d557b2589c5f7af6656cf21496d241efbd690235ec2a222d2885bc961769
SSDEEP 6144:1iY8Pk8p+ly2WtzH7NrIrBJjvft5LZFL92hUPEIeO:1iY8P7IYR0vfjZZ92hUV
MD5 SHA1 SHA512 SSDEEP

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l9947470.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l9947470.exe
Size 257KB
SHA256 55d5a4c3b7504caae5e66e65086a0b025fe4ab55185dd3293c1eed8d1e074105
MD5 b02074f0f0a9e80a448ed7299e1334d2
SHA1 b6943ff147635f855a1f329ba0502d108ad3b727
SHA512 2933b46ce199ef6a03e7e899f58ff2ef0a5723a5b20953fb9984b375010967c4c707d557b2589c5f7af6656cf21496d241efbd690235ec2a222d2885bc961769
SSDEEP 6144:1iY8Pk8p+ly2WtzH7NrIrBJjvft5LZFL92hUPEIeO:1iY8P7IYR0vfjZZ92hUV
MD5 SHA1 SHA512 SSDEEP

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memory/312-153-0x00000000001F0000-0x00000000001FA000-memory.dmp

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memory/1420-133-0x00000000006A0000-0x0000000000714000-memory.dmp

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memory/4936-162-0x0000000000490000-0x00000000004C0000-memory.dmp

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memory/4936-167-0x000000000A6D0000-0x000000000ACE8000-memory.dmp

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memory/4936-168-0x000000000A140000-0x000000000A24A000-memory.dmp

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memory/4936-169-0x000000000A280000-0x000000000A292000-memory.dmp

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memory/4936-170-0x000000000A2A0000-0x000000000A2DC000-memory.dmp

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memory/4936-171-0x0000000004C10000-0x0000000004C20000-memory.dmp

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memory/4936-172-0x0000000004C10000-0x0000000004C20000-memory.dmp

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