guloader | cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 discovery downloader keylogger 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
2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
2508	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
5	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2816	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
2816	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2508 set thread context of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31

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

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 1 IoCs

pid	Process
2816	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31
PID 2508 wrote to memory of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31
PID 2508 wrote to memory of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31
PID 2508 wrote to memory of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31
PID 2508 wrote to memory of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31
PID 2508 wrote to memory of 2816	2508	cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe	31

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:2508
- C:\Users\Admin\AppData\Local\Temp\cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe
  "C:\Users\Admin\AppData\Local\Temp\cf2afee6c1871706deb922c7105c9e5bf6a2bbaca312b1b4ec4951dcfa033ea7.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsjB427.tmp

Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjB427.tmp

Filesize
9B

MD5
2b3884fe02299c565e1c37ee7ef99293

SHA1
d8e2ef2a52083f6df210109fea53860ea227af9c

SHA256
ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

SHA512
aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjB427.tmp

Filesize
12B

MD5
558ec0e73952eb4a395e7f17eb69221e

SHA1
d1cb97bfc8d9fad9eab7d19e685029b5f7084709

SHA256
4d8a1cb0f83d824cec9e15e4d45605ed2cc92ae959602d0cc8873b0125d4cd74

SHA512
698fb90fadb2b22ce78f874dac04c2f0bf72340d39f135e7736afdb9a9b28c9c55a8c6c9f871676134e6d057a90afc2944d1f1e8a117cc0f7a90c8d9b60c5dbe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB3F7.tmp

Filesize
7B

MD5
67cfa7364c4cf265b047d87ff2e673ae

SHA1
56e27889277981a9b63fcf5b218744a125bbc2fa

SHA256
639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713

SHA512
17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB447.tmp

Filesize
1B

MD5
8ce4b16b22b58894aa86c421e8759df3

SHA1
13fbd79c3d390e5d6585a21e11ff5ec1970cff0c

SHA256
8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a

SHA512
2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB447.tmp

Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB447.tmp

Filesize
5B

MD5
e2fecc970546c3418917879fe354826c

SHA1
63f1c1dd01b87704a6b6c99fd9f141e0a3064f16

SHA256
ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0

SHA512
3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB447.tmp

Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB447.tmp

Filesize
10B

MD5
9a53fc1d7126c5e7c81bb5c15b15537b

SHA1
e2d13e0fa37de4c98f30c728210d6afafbb2b000

SHA256
a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92

SHA512
b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoB447.tmp

Filesize
51B

MD5
7891ab6f3fbbc09682fd84e8469673a4

SHA1
b9d1eba1489ce7f719e5bd7fa926bedc6d04d9d0

SHA256
d9f83fc0c87d979c6dd9bbec100164abcc97007acb98b34f324a30e42113d3ce

SHA512
2beb04d4301be729a3f03c4ee6473ce718bd655118c43765a01645e446c0c5e4b71a046d0262e973915949d7e6d8d5e1c12c840061a4e4500125db0d2b6001a2

Download Submit
\Users\Admin\AppData\Local\Temp\nsoB3F6.tmp\System.dll

Filesize
11KB

MD5
4d3b19a81bd51f8ce44b93643a4e3a99

SHA1
35f8b00e85577b014080df98bd2c378351d9b3e9

SHA256
fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce

SHA512
b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622

Download Submit
memory/2508-568-0x0000000003810000-0x000000000545A000-memory.dmp

Filesize
28.3MB

Download
memory/2508-569-0x00000000771E1000-0x00000000772E2000-memory.dmp

Filesize
1.0MB

Download
memory/2508-570-0x00000000771E0000-0x0000000077389000-memory.dmp

Filesize
1.7MB

Download
memory/2508-571-0x0000000003810000-0x000000000545A000-memory.dmp

Filesize
28.3MB

Download
memory/2508-573-0x0000000003810000-0x000000000545A000-memory.dmp

Filesize
28.3MB

Download
memory/2816-572-0x00000000771E0000-0x0000000077389000-memory.dmp

Filesize
1.7MB

Download
memory/2816-574-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2816-575-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2816-576-0x0000000000490000-0x00000000004D8000-memory.dmp

Filesize
288KB

Download