guloader | 248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 02:12

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General

Target

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
Size

1008KB
MD5

ddb90d73f21bb04d0a0701542efc6a3c
SHA1

fc3f21cba36333991d3d417be080e28718f08bde
SHA256

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2
SHA512

74aa87dfc14b0f3390ea64fd50e19e5e8eddaf41abcec7b45334468aedf6ecce65ece411e46a6481104e1ca99fa40e925e1f8fab19c9b677c97d8c5057748d1f
SSDEEP

12288:tqisoX8Q/V9qa5ZwLuEbimk3RjzF6rWowo3lItWMTCJqCOll:RHsQ9ovLSvcrh9+tW40O7

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.fibraunollc.top
Port:
587
Username:
[email protected]
Password:
7213575aceACE@@
Email To:
[email protected]

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Loads dropped DLL 2 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

pid	process
2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

21 checkip.dyndns.org
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

pid process

384 248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

flow	ioc
21	checkip.dyndns.org

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

pid	process
2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
384	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	pid	process	target process
PID 2380 set thread context of 384	2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Drops file in Windows directory 2 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	ioc	process
File opened for modification	C:\Windows\resources\0409\backstrap\lejekassernerne.Osc55	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
File opened for modification	C:\Windows\resources\ttningslisternes\Poulardes50.sto	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

pid	process
384	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
384	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

pid process

2380 248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description pid process

Token: SeDebugPrivilege 384 248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	pid	process
Token: SeDebugPrivilege	384	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	pid	process	target process
PID 2380 wrote to memory of 384	2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
PID 2380 wrote to memory of 384	2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
PID 2380 wrote to memory of 384	2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
PID 2380 wrote to memory of 384	2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
PID 2380 wrote to memory of 384	2380	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

outlook_office_path 1 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

outlook_win_path 1 IoCs

Processes:

248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe

C:\Users\Admin\AppData\Local\Temp\248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
"C:\Users\Admin\AppData\Local\Temp\248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe
  "C:\Users\Admin\AppData\Local\Temp\248ee27dc6af4db223815e90c43103f7d96462a2ce88c0cfbfa2b25673c90ac2.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsa8717.tmp

Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsa8717.tmp

Filesize
9B

MD5
2b3884fe02299c565e1c37ee7ef99293

SHA1
d8e2ef2a52083f6df210109fea53860ea227af9c

SHA256
ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

SHA512
aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj84E1.tmp\System.dll

Filesize
11KB

MD5
6ad39193ed20078aa1b23c33a1e48859

SHA1
95e70e4f47aa1689cc08afbdaef3ec323b5342fa

SHA256
b9631423a50c666faf2cc6901c5a8d6eb2fecd306fdd2524256b7e2e37b251c2

SHA512
78c89bb8c86f3b68e5314467eca4e8e922d143335081fa66b01d756303e1aec68ed01f4be7098dbe06a789ca32a0f31102f5ba408bc5ab28e61251611bb4f62b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj84E2.tmp

Filesize
30B

MD5
f7bcbbddb5cb20fdfce72f842cacabe1

SHA1
031c00c0eb114ed2234679c39cb34fdbb9debfb3

SHA256
35dad955ee2ccfe66eb80d670721acf7f83915f1204f07d449aace9c9ca1f2e3

SHA512
2bdb271d96cece4289dec71c02b30a64e509e1e93f25168fd78c72b8197937cc398df0ece30dabc2253129621b8108ed38fa9b2ced12e70ff3f9c5f8ae7b0b29

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsp85ED.tmp

Filesize
1B

MD5
8ce4b16b22b58894aa86c421e8759df3

SHA1
13fbd79c3d390e5d6585a21e11ff5ec1970cff0c

SHA256
8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a

SHA512
2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsp85ED.tmp

Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsp85ED.tmp

Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsp85ED.tmp

Filesize
8B

MD5
c3cb69218b85c3260387fb582cb518dd

SHA1
961c892ded09a4cbb5392097bb845ccba65902ad

SHA256
1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101

SHA512
2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsp85ED.tmp

Filesize
5B

MD5
e2fecc970546c3418917879fe354826c

SHA1
63f1c1dd01b87704a6b6c99fd9f141e0a3064f16

SHA256
ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0

SHA512
3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsp85ED.tmp

Filesize
10B

MD5
9a53fc1d7126c5e7c81bb5c15b15537b

SHA1
e2d13e0fa37de4c98f30c728210d6afafbb2b000

SHA256
a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92

SHA512
b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst83F6.tmp

Filesize
70B

MD5
f603843c4b1146c576a2c9e0826de265

SHA1
5de71ba33c20cfb74c19c706a4a44706d78fb102

SHA256
ada9d1ffc0e78d2e2c05290b4ba1b1b04bc9c97a8f8e084ae0d49e36a9bb9c0c

SHA512
7a5a8ebc1c12193783ae711eb4716c1a2e52d1c4799dcd7f2a29924c246b1c665f456de3eaffd5e9cd7f42e788009e2798d1121c8d695698c86349bff17d5e8a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst83F6.tmp

Filesize
74B

MD5
16d513397f3c1f8334e8f3e4fc49828f

SHA1
4ee15afca81ca6a13af4e38240099b730d6931f0

SHA256
d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36

SHA512
4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst83F6.tmp

Filesize
11B

MD5
bad78a997013818e85c1091ce1f575e0

SHA1
fa7b6b576c9b365194a222dfd1d3805121544fd3

SHA256
e40f87ab67d67e6a7c1784127b0bdeaa1a053cbc50cbb8155cb469016537513d

SHA512
c2f336b68df9aa5234282eb83c042ff87a0187cbd903739bbcbedd6c30be7807d9cd40f97ccd0196d5bdc84833b796197a832687e99da48f1d370d3875bface4

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst83F6.tmp

Filesize
31B

MD5
5e884655c8f5685c77e96ab751afcc46

SHA1
438e7927bcb8633ab39b9e3b7dd7511e5806a93b

SHA256
d12006a59b2bcda77dc8bb9ffb174cdfc818c355a30c8a42fb16d13c0558ad63

SHA512
85c0174ee0d2bddc85d60fe340e409730825fd7b7d15a4456de500f8befcfbc6f47e6c84333f4649eef97d2ced0cc132d1395de744999117125b92abbf42b51b

Download Submit
memory/384-574-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/384-576-0x0000000035880000-0x0000000035E24000-memory.dmp

Filesize
5.6MB

Download
memory/384-585-0x00000000369F0000-0x00000000369FA000-memory.dmp

Filesize
40KB

Download
memory/384-584-0x0000000036900000-0x0000000036992000-memory.dmp

Filesize
584KB

Download
memory/384-571-0x00000000016E0000-0x0000000002EE0000-memory.dmp

Filesize
24.0MB

Download
memory/384-572-0x0000000077E48000-0x0000000077E49000-memory.dmp

Filesize
4KB

Download
memory/384-573-0x0000000077E65000-0x0000000077E66000-memory.dmp

Filesize
4KB

Download
memory/384-582-0x0000000036830000-0x0000000036880000-memory.dmp

Filesize
320KB

Download
memory/384-575-0x0000000000480000-0x00000000004C8000-memory.dmp

Filesize
288KB

Download
memory/384-581-0x0000000036640000-0x0000000036802000-memory.dmp

Filesize
1.8MB

Download
memory/384-577-0x0000000035E30000-0x0000000035ECC000-memory.dmp

Filesize
624KB

Download
memory/384-578-0x00000000016E0000-0x0000000002EE0000-memory.dmp

Filesize
24.0MB

Download
memory/384-580-0x0000000077DC1000-0x0000000077EE1000-memory.dmp

Filesize
1.1MB

Download
memory/2380-568-0x0000000077DC1000-0x0000000077EE1000-memory.dmp

Filesize
1.1MB

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memory/2380-567-0x0000000004A10000-0x0000000006210000-memory.dmp

Filesize
24.0MB

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memory/2380-570-0x0000000004A10000-0x0000000006210000-memory.dmp

Filesize
24.0MB

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memory/2380-569-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

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