skuld | eb69219e7087d2cde2b4d5fc8f5916e6da4c8ded26d596225c9ffdb6432afe7c

Analysis

max time kernel
95s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 08:22

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General

Target

2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Size

9.9MB
MD5

b9e0806263b66ad2c40a42ba4b0e1afa
SHA1

e797f845e0326d085ea59ab07f1bfe5c97366972
SHA256

eb69219e7087d2cde2b4d5fc8f5916e6da4c8ded26d596225c9ffdb6432afe7c
SHA512

5078cc2d5f39edcc33b6dc75a1d472be072ae7ab04867233dc6ebc2c527b6eb403bd8171872819476d442219d8f67484e38da29790f9b99f5cf3709e430d5692
SSDEEP

98304:OzU4brhxBASgf/gEpiji6Ig8TWA6EIICafZm/mbnXg:OxrhxBAGZji6IdThnRTXg

Score

10^/10

skuld persistence stealer

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1303511495669452840/YMUYaitq1zYOnhWAEVTNaVIdpFxeL0NRpgtnapspyivC9Zkqm099aqfP1_BHdvn5J08S

Signatures

Skuld family
skuld
Skuld stealer
An info stealer written in Go lang.
stealer skuld

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	api.ipify.org
2	api.ipify.org
5	ip-api.com

GoLang User-Agent 1 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	8	Go-http-client/1.1

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 0400000001000000100000003e455215095192e1b75d379fb187298a0f00000001000000140000005a6d07b6371d966a2fb6ba92828ce5512a49513d090000000100000068000000306606082b0601050507030206082b06010505070303060a2b0601040182370a030406082b0601050507030406082b0601050508020206082b0601050507030606082b0601050507030706082b0601050507030906082b0601050507030106082b06010505070308530000000100000040000000303e301f06092b06010401a032010130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c00b000000010000003000000047006c006f00620061006c005300690067006e00200052006f006f00740020004300410020002d002000520031000000620000000100000020000000ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99140000000100000014000000607b661a450d97ca89502f7d04cd34a8fffcfd4b1d00000001000000100000006ee7f3b060d10e90a31ba3471b9992367f000000010000000c000000300a06082b060105050703097a000000010000000c000000300a06082b060105050703097e00000001000000080000000000042beb77d501030000000100000014000000b1bc968bd4f49d622aa89a81f2150152a41d829c190000000100000010000000a823b4a20180beb460cab955c24d7e21200000000100000079030000308203753082025da003020102020b040000000001154b5ac394300d06092a864886f70d01010505003057310b300906035504061302424531193017060355040a1310476c6f62616c5369676e206e762d73613110300e060355040b1307526f6f74204341311b301906035504031312476c6f62616c5369676e20526f6f74204341301e170d3938303930313132303030305a170d3238303132383132303030305a3057310b300906035504061302424531193017060355040a1310476c6f62616c5369676e206e762d73613110300e060355040b1307526f6f74204341311b301906035504031312476c6f62616c5369676e20526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100da0ee6998dcea3e34f8a7efbf18b83256bea481ff12ab0b9951104bdf063d1e26766cf1cddcf1b482bee8d898e9aaf298065abe9c72d12cbab1c4c7007a13d0a30cd158d4ff8ddd48c50151cef50eec42ef7fce952f2917de06dd535308e5e4373f241e9d56ae3b2893a5639386f063c88695b2a4dc5a754b86c89cc9bf93ccae5fd89f5123c927896d6dc746e934461d18dc746b2750e86e8198ad56d6cd5781695a2e9c80a38ebf224134f73549313853a1bbc1e34b58b058cb9778bb1db1f2091ab09536e90ce7b3774b97047912251631679aeb1ae412608c8192bd146aa48d6642ad78334ff2c2ac16c19434a0785e7d37cf62168efeaf2529f7f9390cf0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e04160414607b661a450d97ca89502f7d04cd34a8fffcfd4b300d06092a864886f70d01010505000382010100d673e77c4f76d08dbfecbaa2be34c52832b57cfc6c9c2c2bbd099e53bf6b5eaa1148b6e508a3b3ca3d614dd34609b33ec3a0e363551bf2baefad39e143b938a3e62f8a263befa05056f9c60afd38cdc40b705194979804dfc35f94d515c914419cc45d7564150dff5530ec868fff0def2cb96346f6aafcdfbc69fd2e1248649ae095f0a6ef298f01b115b50c1da5fe692c6924781eb3a71c7162eecac897ac175d8ac2f847866e2ac4563195d06789852bf96ca65d469d0caa82e49951dd70b7db563d61e46ae15cd6f6fe3dde41cc07ae6352bf5353f42be9c7fdb6f7825f85d24118db81b3041cc51fa4806f1520c9de0c880a1dd66655e2fc48c9292669e0	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Token: SeIncreaseQuotaPrivilege	2840	wmic.exe
Token: SeSecurityPrivilege	2840	wmic.exe
Token: SeTakeOwnershipPrivilege	2840	wmic.exe
Token: SeLoadDriverPrivilege	2840	wmic.exe
Token: SeSystemProfilePrivilege	2840	wmic.exe
Token: SeSystemtimePrivilege	2840	wmic.exe
Token: SeProfSingleProcessPrivilege	2840	wmic.exe
Token: SeIncBasePriorityPrivilege	2840	wmic.exe
Token: SeCreatePagefilePrivilege	2840	wmic.exe
Token: SeBackupPrivilege	2840	wmic.exe
Token: SeRestorePrivilege	2840	wmic.exe
Token: SeShutdownPrivilege	2840	wmic.exe
Token: SeDebugPrivilege	2840	wmic.exe
Token: SeSystemEnvironmentPrivilege	2840	wmic.exe
Token: SeRemoteShutdownPrivilege	2840	wmic.exe
Token: SeUndockPrivilege	2840	wmic.exe
Token: SeManageVolumePrivilege	2840	wmic.exe
Token: 33	2840	wmic.exe
Token: 34	2840	wmic.exe
Token: 35	2840	wmic.exe
Token: 36	2840	wmic.exe
Token: SeIncreaseQuotaPrivilege	2840	wmic.exe
Token: SeSecurityPrivilege	2840	wmic.exe
Token: SeTakeOwnershipPrivilege	2840	wmic.exe
Token: SeLoadDriverPrivilege	2840	wmic.exe
Token: SeSystemProfilePrivilege	2840	wmic.exe
Token: SeSystemtimePrivilege	2840	wmic.exe
Token: SeProfSingleProcessPrivilege	2840	wmic.exe
Token: SeIncBasePriorityPrivilege	2840	wmic.exe
Token: SeCreatePagefilePrivilege	2840	wmic.exe
Token: SeBackupPrivilege	2840	wmic.exe
Token: SeRestorePrivilege	2840	wmic.exe
Token: SeShutdownPrivilege	2840	wmic.exe
Token: SeDebugPrivilege	2840	wmic.exe
Token: SeSystemEnvironmentPrivilege	2840	wmic.exe
Token: SeRemoteShutdownPrivilege	2840	wmic.exe
Token: SeUndockPrivilege	2840	wmic.exe
Token: SeManageVolumePrivilege	2840	wmic.exe
Token: 33	2840	wmic.exe
Token: 34	2840	wmic.exe
Token: 35	2840	wmic.exe
Token: 36	2840	wmic.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 4988	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	85
PID 4752 wrote to memory of 4988	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	85
PID 4752 wrote to memory of 1916	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	86
PID 4752 wrote to memory of 1916	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	86
PID 4752 wrote to memory of 2840	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 4752 wrote to memory of 2840	4752	2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4988	attrib.exe
1916	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2024-11-09_b9e0806263b66ad2c40a42ba4b0e1afa_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
  2⤵
  - Views/modifies file attributes
  PID:4988
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:1916
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe

Filesize
9.9MB

MD5
b9e0806263b66ad2c40a42ba4b0e1afa

SHA1
e797f845e0326d085ea59ab07f1bfe5c97366972

SHA256
eb69219e7087d2cde2b4d5fc8f5916e6da4c8ded26d596225c9ffdb6432afe7c

SHA512
5078cc2d5f39edcc33b6dc75a1d472be072ae7ab04867233dc6ebc2c527b6eb403bd8171872819476d442219d8f67484e38da29790f9b99f5cf3709e430d5692

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads