guloader | d6d3e11dece00e76f60d74fb2c117ae261c961fbb37030fc8d6ad748510914ae

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 13:48

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General

Target

PO-94858.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
2880	PO-94858.exe
2880	PO-94858.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
2052	PO-94858.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2880	PO-94858.exe
2052	PO-94858.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 2052	2880	PO-94858.exe	30

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Dicer\Tabitta.ini	PO-94858.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	PO-94858.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO-94858.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2052	PO-94858.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2880	PO-94858.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	PO-94858.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2052	2880	PO-94858.exe	30
PID 2880 wrote to memory of 2052	2880	PO-94858.exe	30
PID 2880 wrote to memory of 2052	2880	PO-94858.exe	30
PID 2880 wrote to memory of 2052	2880	PO-94858.exe	30
PID 2880 wrote to memory of 2052	2880	PO-94858.exe	30
PID 2880 wrote to memory of 2052	2880	PO-94858.exe	30

C:\Users\Admin\AppData\Local\Temp\PO-94858.exe
"C:\Users\Admin\AppData\Local\Temp\PO-94858.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:2880
- C:\Users\Admin\AppData\Local\Temp\PO-94858.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-94858.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2052

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\nse6385.tmp

Filesize
74B

MD5
16d513397f3c1f8334e8f3e4fc49828f

SHA1
4ee15afca81ca6a13af4e38240099b730d6931f0

SHA256
d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36

SHA512
4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse6471.tmp

Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse6471.tmp

Filesize
15B

MD5
aec87a5b696e973fd725cfd7fccef0bb

SHA1
4c0cd9bd8adbc7ad00627bc192c73d3aa23f0f02

SHA256
a48c987be1252d84c855810b44ad498f5ab67b9b8bfea471b0e1ec5a7f480fc9

SHA512
8cf3daf380683412911f7d0719c48a9ffa313d09016f6c811f41a16416ad0c3abba2cd34a57ca912ca1853b12665824732a480ec15f127a33aa1476d7479d499

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse6471.tmp

Filesize
47B

MD5
a44e5b9b8830beb622f716549767927d

SHA1
78160ea5ffaa4c2e170780a8c18fd36a47724cf7

SHA256
f90559b15f9f45cefd05f0e7b0ec4b7b254a22a2f2cc65eabd6a40ed0c889137

SHA512
ce3a50dc422773b2543260285c7e62617c104c797e4bb4cb16a3d1fc80d18fb6285120e71ba28522061e04c7b89954f5154a490d323ba695493d48a6fd0e43af

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse655D.tmp

Filesize
9B

MD5
2b3884fe02299c565e1c37ee7ef99293

SHA1
d8e2ef2a52083f6df210109fea53860ea227af9c

SHA256
ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

SHA512
aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse655D.tmp

Filesize
10B

MD5
9a53fc1d7126c5e7c81bb5c15b15537b

SHA1
e2d13e0fa37de4c98f30c728210d6afafbb2b000

SHA256
a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92

SHA512
b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse655D.tmp

Filesize
50B

MD5
39f4726e04635566ecd140269c52a5a7

SHA1
f3d8555e441769a44690d893089b1249566bca0a

SHA256
34ef13c67c7d5422d33afc92cf4c35253a3137e43801193c3c427a068d401cc1

SHA512
14209f461b587ef92f16ca74062ca2a5d308ac19163be88a7146b6b8d11c7d21829bb90bca102db058a2fbdb42066d010e87a13982fe309629e04413ab36d6d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
1B

MD5
8ce4b16b22b58894aa86c421e8759df3

SHA1
13fbd79c3d390e5d6585a21e11ff5ec1970cff0c

SHA256
8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a

SHA512
2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
3B

MD5
4e27f2226785e9abbe046fc592668860

SHA1
28b18a7f383131df509f7191f946a32c5a2e410c

SHA256
01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d

SHA512
2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
5B

MD5
e2fecc970546c3418917879fe354826c

SHA1
63f1c1dd01b87704a6b6c99fd9f141e0a3064f16

SHA256
ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0

SHA512
3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
8B

MD5
c3cb69218b85c3260387fb582cb518dd

SHA1
961c892ded09a4cbb5392097bb845ccba65902ad

SHA256
1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101

SHA512
2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
26B

MD5
b42b894b52848a0731561b7d91665a86

SHA1
6c849620fa8de81e3ae792763ee16f8557422243

SHA256
47c3200448acdbbc900646793f4e4bee95b3967eb7b2c1f5dfb5ced4277ba5fb

SHA512
96b670288335d02c51606f39b3b8007780d34405ee7f2ef0ff977af15cd9031a9fa06383bbea2fffce915c34852ec698f3f3d1a18c64a0fdcfee97c09e70a49a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj64DF.tmp

Filesize
31B

MD5
41b51e9afb2d94b7cc01e3b3ced54d03

SHA1
c28605bc5b2e6ca1b6d2de2c7a3541f86f8950f4

SHA256
540e7cdff84e1a1430f53ffe9e7e02c3925025f9459c23967007c0338b2ddb8b

SHA512
9d1d9c5aabce3e8e95b2345a7f60b85e8befcce32c181cc12b42d1c5c59047a488e655239f7a4593f8b9ecf794b7bc5be173989539c6acce58cade2de6c59e2e

Download Submit
\Users\Admin\AppData\Local\Temp\nst6431.tmp\System.dll

Filesize
11KB

MD5
4d3b19a81bd51f8ce44b93643a4e3a99

SHA1
35f8b00e85577b014080df98bd2c378351d9b3e9

SHA256
fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce

SHA512
b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622

Download Submit
memory/2052-572-0x0000000076E40000-0x0000000076FE9000-memory.dmp

Filesize
1.7MB

Download
memory/2052-574-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2052-575-0x0000000000490000-0x00000000004D8000-memory.dmp

Filesize
288KB

Download
memory/2880-568-0x00000000032A0000-0x0000000004EEA000-memory.dmp

Filesize
28.3MB

Download
memory/2880-569-0x00000000032A0000-0x0000000004EEA000-memory.dmp

Filesize
28.3MB

Download
memory/2880-570-0x0000000076E41000-0x0000000076F42000-memory.dmp

Filesize
1.0MB

Download
memory/2880-571-0x0000000076E40000-0x0000000076FE9000-memory.dmp

Filesize
1.7MB

Download
memory/2880-573-0x00000000032A0000-0x0000000004EEA000-memory.dmp

Filesize
28.3MB

Download