guloader | 2c18a3af7a45f3b6c0bf641a4e0518bcffad89915f16fc1e217aca2349640287

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
11-02-2025 15:27

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General

Target

JUSTIF. PAGO AQUISGRANpdf.exe
Size

1.2MB
MD5

2535cc454af795347095870ca9ce8813
SHA1

cb57530e8c7728a65a6e1d5bb02bc60cd34e2acc
SHA256

b81941d461376eb31e9d7a8a32223eb7f75064ea44069da96ea673ca189c3009
SHA512

c8940abf74bc6a8650299ec57afb152e6956515cf4468f7702f253c6818b20d49bb1a87b1088bdce9f9b7e27d48badeea1de894383cf4ec0bb37d5f4e302a286
SSDEEP

24576:rPte6p+SwiWl+GNraWrzAk2LIP4ylsjM3NVzyYTjM5v:OSwpNrf4k2o4RjMXDTjM5v

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

https://api.telegram.org/bot7593476266:AAE6M295mE9PbPkQ7CR5WSujMoIZWK3jwKo/sendMessage?chat_id=6104927734

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
51	1208	Process not Found

Loads dropped DLL 2 IoCs

pid	Process
4404	JUSTIF. PAGO AQUISGRANpdf.exe
4404	JUSTIF. PAGO AQUISGRANpdf.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-705198581-2062733989-3666524522-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JUSTIF. PAGO AQUISGRANpdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-705198581-2062733989-3666524522-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JUSTIF. PAGO AQUISGRANpdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-705198581-2062733989-3666524522-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JUSTIF. PAGO AQUISGRANpdf.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
30	drive.google.com
31	drive.google.com
46	drive.google.com

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
52	checkip.dyndns.org
56	reallyfreegeoip.org
57	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
300	JUSTIF. PAGO AQUISGRANpdf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4404	JUSTIF. PAGO AQUISGRANpdf.exe
300	JUSTIF. PAGO AQUISGRANpdf.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\Femlings.ini	JUSTIF. PAGO AQUISGRANpdf.exe
File opened for modification	C:\Windows\resources\Disrespective\mouseweb.sup	JUSTIF. PAGO AQUISGRANpdf.exe
File opened for modification	C:\Windows\resources\dmmer.Cer176	JUSTIF. PAGO AQUISGRANpdf.exe
File created	C:\Windows\resources\Woodbined189\gorgously.lnk	JUSTIF. PAGO AQUISGRANpdf.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 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	JUSTIF. PAGO AQUISGRANpdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JUSTIF. PAGO AQUISGRANpdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5048	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
300	JUSTIF. PAGO AQUISGRANpdf.exe
300	JUSTIF. PAGO AQUISGRANpdf.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4404	JUSTIF. PAGO AQUISGRANpdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	300	JUSTIF. PAGO AQUISGRANpdf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4404 wrote to memory of 300	4404	JUSTIF. PAGO AQUISGRANpdf.exe	94
PID 4404 wrote to memory of 300	4404	JUSTIF. PAGO AQUISGRANpdf.exe	94
PID 4404 wrote to memory of 300	4404	JUSTIF. PAGO AQUISGRANpdf.exe	94
PID 4404 wrote to memory of 300	4404	JUSTIF. PAGO AQUISGRANpdf.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-705198581-2062733989-3666524522-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JUSTIF. PAGO AQUISGRANpdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-705198581-2062733989-3666524522-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JUSTIF. PAGO AQUISGRANpdf.exe

C:\Users\Admin\AppData\Local\Temp\JUSTIF. PAGO AQUISGRANpdf.exe
"C:\Users\Admin\AppData\Local\Temp\JUSTIF. PAGO AQUISGRANpdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4404
- C:\Users\Admin\AppData\Local\Temp\JUSTIF. PAGO AQUISGRANpdf.exe
  "C:\Users\Admin\AppData\Local\Temp\JUSTIF. PAGO AQUISGRANpdf.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:300

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MzA4NjQxOTAxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:5048

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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsiC14D.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
1B

MD5
8ce4b16b22b58894aa86c421e8759df3

SHA1
13fbd79c3d390e5d6585a21e11ff5ec1970cff0c

SHA256
8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a

SHA512
2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
3B

MD5
4e27f2226785e9abbe046fc592668860

SHA1
28b18a7f383131df509f7191f946a32c5a2e410c

SHA256
01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d

SHA512
2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
5B

MD5
e2fecc970546c3418917879fe354826c

SHA1
63f1c1dd01b87704a6b6c99fd9f141e0a3064f16

SHA256
ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0

SHA512
3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
7B

MD5
67cfa7364c4cf265b047d87ff2e673ae

SHA1
56e27889277981a9b63fcf5b218744a125bbc2fa

SHA256
639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713

SHA512
17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
8B

MD5
c3cb69218b85c3260387fb582cb518dd

SHA1
961c892ded09a4cbb5392097bb845ccba65902ad

SHA256
1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101

SHA512
2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
9B

MD5
2b3884fe02299c565e1c37ee7ef99293

SHA1
d8e2ef2a52083f6df210109fea53860ea227af9c

SHA256
ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

SHA512
aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiCDB4.tmp

Filesize
10B

MD5
9a53fc1d7126c5e7c81bb5c15b15537b

SHA1
e2d13e0fa37de4c98f30c728210d6afafbb2b000

SHA256
a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92

SHA512
b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

Download Submit
C:\Users\Admin\AppData\Local\Wizzens.ini

Filesize
36B

MD5
74483b60253f907579f0ebaa81262424

SHA1
9bb553dee3ab92bf0b861fbaed514451dea0f902

SHA256
4347e411413d2c4e39f1cab402f88379d4e9babb2a9072a773260c9072a2c0f6

SHA512
e3c81e22d5b5c5f26c1a2dd20a883fe76cfd4919ee7def0c16f09ec08e02e5ff9ff1f74b5860305cf69b466037244dcec4702160d148e36b9bb0dbc1b13c1013

Download Submit
memory/300-592-0x00000000016B0000-0x0000000005A25000-memory.dmp

Filesize
67.5MB

Download
memory/300-612-0x00000000016B0000-0x0000000005A25000-memory.dmp

Filesize
67.5MB

Download
memory/300-622-0x0000000036170000-0x000000003617A000-memory.dmp

Filesize
40KB

Download
memory/300-593-0x0000000077B61000-0x0000000077C81000-memory.dmp

Filesize
1.1MB

Download
memory/300-594-0x0000000077BE8000-0x0000000077BE9000-memory.dmp

Filesize
4KB

Download
memory/300-595-0x0000000077C05000-0x0000000077C06000-memory.dmp

Filesize
4KB

Download
memory/300-598-0x0000000077B61000-0x0000000077C81000-memory.dmp

Filesize
1.1MB

Download
memory/300-597-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/300-611-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/300-621-0x00000000360C0000-0x0000000036152000-memory.dmp

Filesize
584KB

Download
memory/300-613-0x0000000000450000-0x0000000000492000-memory.dmp

Filesize
264KB

Download
memory/300-614-0x00000000388E0000-0x0000000038E84000-memory.dmp

Filesize
5.6MB

Download
memory/300-615-0x00000000387B0000-0x000000003884C000-memory.dmp

Filesize
624KB

Download
memory/300-618-0x0000000039390000-0x0000000039552000-memory.dmp

Filesize
1.8MB

Download
memory/300-619-0x0000000039560000-0x00000000395B0000-memory.dmp

Filesize
320KB

Download
memory/4404-591-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/4404-590-0x0000000077B61000-0x0000000077C81000-memory.dmp

Filesize
1.1MB

Download