guloader | cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7

Analysis

max time kernel
141s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 02:46

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General

Target

cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
Size

876KB
MD5

efeb7d261da3f778abf002c69a971eb8
SHA1

f4e570bf56015da2c76faac8dc8f28a7e3a3d8a3
SHA256

cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7
SHA512

5cbcd6b9b06f63019e9c00e47e4bee071079e81792ea8cd6173d4f544c15b852090f38e3a642dbc51dd357068634a4b769098204f9f409119a3675eb4d98487e
SSDEEP

24576:sw5i21T5xhInKT/Y2ol8tdi817TWdg0F7RR:sV017TWSyR

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
hosting1.ro.hostsailor.com
Port:
587
Username:
[email protected]
Password:
7213575aceACE@@
Email To:
[email protected]

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.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.

flow	ioc
33	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4056	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
4056	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1824 set thread context of 4056	1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	93

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Dicer\Tabitta.ini	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4056	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
4056	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4056	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 4056	1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	93
PID 1824 wrote to memory of 4056	1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	93
PID 1824 wrote to memory of 4056	1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	93
PID 1824 wrote to memory of 4056	1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	93
PID 1824 wrote to memory of 4056	1824	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

C:\Users\Admin\AppData\Local\Temp\cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
"C:\Users\Admin\AppData\Local\Temp\cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Users\Admin\AppData\Local\Temp\cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
  "C:\Users\Admin\AppData\Local\Temp\cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.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:4056

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\nsd8EB8.tmp

Filesize
1B

MD5
8ce4b16b22b58894aa86c421e8759df3

SHA1
13fbd79c3d390e5d6585a21e11ff5ec1970cff0c

SHA256
8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a

SHA512
2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd8EB8.tmp

Filesize
43B

MD5
c36c9179bea0b9a031aea9a410f63976

SHA1
11da061f4328997032902b341f839a07bcd095d3

SHA256
cbea242e955124a1fc94b23fdd1c940d67d87233a3b94ec8e5b17876149a0728

SHA512
c3b02742e69119b7873e23d7ecdbab9639a4b60b9cf80d89466eb3fe03a018b4cec0900c9aa261357a7bc782dad69b35b90b0eb299ac32b36a000db88004659b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd8EB8.tmp

Filesize
48B

MD5
d89883efb92c77fb8a78c302992be047

SHA1
5d1442f4c215394e4581cb732cf71e1492264c89

SHA256
bc1c5d3b3ed1cc6dc17436aab25f9f6b0a376d1a700c3e56c74bba03f58a4102

SHA512
4cf3dda2a32c4a6434601c2d467ac1fd5a6b97862eba5e33e4e9b2bd0846913b0c2272c1c7593fa673e9013e5758c179541b04d0120c94b8a01a6ab9310ecfbc

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd8EB8.tmp

Filesize
56B

MD5
1d81c1410f78828e50e2e01cbecb8726

SHA1
6c151a8d746bd09b53f4b098ddfe540404142bbf

SHA256
b7b033a5732bdcd39f59d66e106987880d214816a6c8b365a12e223663000808

SHA512
b79ff7af604f9cdfebf6b4d267607def28ac75c9801fb1376ed9f3dfcc759f0d3321b614102a7ac05a2cb0cdecc382fd7a597b5601e19ef028f8a04f2c6f24ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi8E39.tmp

Filesize
3B

MD5
4e27f2226785e9abbe046fc592668860

SHA1
28b18a7f383131df509f7191f946a32c5a2e410c

SHA256
01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d

SHA512
2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi8E39.tmp

Filesize
15B

MD5
aec87a5b696e973fd725cfd7fccef0bb

SHA1
4c0cd9bd8adbc7ad00627bc192c73d3aa23f0f02

SHA256
a48c987be1252d84c855810b44ad498f5ab67b9b8bfea471b0e1ec5a7f480fc9

SHA512
8cf3daf380683412911f7d0719c48a9ffa313d09016f6c811f41a16416ad0c3abba2cd34a57ca912ca1853b12665824732a480ec15f127a33aa1476d7479d499

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi8E39.tmp

Filesize
33B

MD5
d0c16d35895f4a76cb4fa85fc11c6842

SHA1
61d36c5b3fd3f0772608359b7ed9890b0474aee0

SHA256
d6063a46a92e1a2600bb31588a58cf906711aaaa1813e593c191da5881b46a59

SHA512
3595c1578f0c1a2d47d75f2c5260bd7b85551501c94a0abf609752e04e2e9f1f9d7a19f654d803a0c65d40d4b74dfb32d31bd88a9b8813e7466b914d2b800951

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi8E39.tmp

Filesize
44B

MD5
a34dd33a1fabfd2c2a268ca5dafab94f

SHA1
4d321237095816d8ad7a3e8c16154286bcb161e9

SHA256
dfc902cecc7c8eba5bd0d37e27541823ba74c67ac26cd263568f9b4880ab6f1b

SHA512
e22f1a71835ce0fd8add953d182b1999f65db2c8c434beadc7e1db39dda17ddf669c8bd2ba266b17c0b6eac4cf44480b307b17fbc32b1521a505c49bab5af7fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nss8E28.tmp\System.dll

Filesize
11KB

MD5
4d3b19a81bd51f8ce44b93643a4e3a99

SHA1
35f8b00e85577b014080df98bd2c378351d9b3e9

SHA256
fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce

SHA512
b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
5B

MD5
e2fecc970546c3418917879fe354826c

SHA1
63f1c1dd01b87704a6b6c99fd9f141e0a3064f16

SHA256
ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0

SHA512
3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
7B

MD5
67cfa7364c4cf265b047d87ff2e673ae

SHA1
56e27889277981a9b63fcf5b218744a125bbc2fa

SHA256
639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713

SHA512
17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
9B

MD5
2b3884fe02299c565e1c37ee7ef99293

SHA1
d8e2ef2a52083f6df210109fea53860ea227af9c

SHA256
ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

SHA512
aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8E79.tmp

Filesize
33B

MD5
c4ca515756d133192b77ccc58cf7ef54

SHA1
3e52c199640bd29f2ad2acdca94349b7df0b851b

SHA256
21b55bfeaf0dc686831bf540d95f27905ebc90bbaf7e3b372a23d19412bc1850

SHA512
6ac8879fe50b025e6801f5a9fc29bfaaa9bcc9f2571df2c1c6d6851a657ccc8c4e210734f0d15c405bda32eca29b1f560c64a02bcc2d8eba9bc4f26089a7b10a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst8F17.tmp

Filesize
30B

MD5
f15bfdebb2df02d02c8491bde1b4e9bd

SHA1
93bd46f57c3316c27cad2605ddf81d6c0bde9301

SHA256
c87f2ff45bb530577fb8856df1760edaf1060ae4ee2934b17fdd21b7d116f043

SHA512
1757ed4ae4d47d0c839511c18be5d75796224d4a3049e2d8853650ace2c5057c42040de6450bf90dd4969862e9ebb420cd8a34f8dd9c970779ed2e5459e8f2f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsx8DAA.tmp

Filesize
11B

MD5
bad78a997013818e85c1091ce1f575e0

SHA1
fa7b6b576c9b365194a222dfd1d3805121544fd3

SHA256
e40f87ab67d67e6a7c1784127b0bdeaa1a053cbc50cbb8155cb469016537513d

SHA512
c2f336b68df9aa5234282eb83c042ff87a0187cbd903739bbcbedd6c30be7807d9cd40f97ccd0196d5bdc84833b796197a832687e99da48f1d370d3875bface4

Download Submit
memory/1824-566-0x00000000049A0000-0x00000000065EA000-memory.dmp

Filesize
28.3MB

Download
memory/1824-570-0x00000000049A0000-0x00000000065EA000-memory.dmp

Filesize
28.3MB

Download
memory/1824-569-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/1824-568-0x00000000049A0000-0x00000000065EA000-memory.dmp

Filesize
28.3MB

Download
memory/1824-567-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/4056-575-0x0000000000490000-0x00000000016E4000-memory.dmp

Filesize
18.3MB

Download
memory/4056-572-0x0000000077708000-0x0000000077709000-memory.dmp

Filesize
4KB

Download
memory/4056-573-0x00000000016F0000-0x000000000333A000-memory.dmp

Filesize
28.3MB

Download
memory/4056-574-0x0000000077725000-0x0000000077726000-memory.dmp

Filesize
4KB

Download
memory/4056-571-0x00000000016F0000-0x000000000333A000-memory.dmp

Filesize
28.3MB

Download
memory/4056-577-0x0000000000490000-0x00000000004D8000-memory.dmp

Filesize
288KB

Download
memory/4056-578-0x0000000035D40000-0x00000000362E4000-memory.dmp

Filesize
5.6MB

Download
memory/4056-579-0x0000000035B40000-0x0000000035BDC000-memory.dmp

Filesize
624KB

Download
memory/4056-580-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/4056-581-0x00000000369B0000-0x0000000036B72000-memory.dmp

Filesize
1.8MB

Download
memory/4056-582-0x0000000036B80000-0x0000000036BD0000-memory.dmp

Filesize
320KB

Download
memory/4056-584-0x0000000036C20000-0x0000000036CB2000-memory.dmp

Filesize
584KB

Download
memory/4056-585-0x0000000036D10000-0x0000000036D1A000-memory.dmp

Filesize
40KB

Download