guloader | 2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777

General

Target

2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
Size

742KB
MD5

c0fb01b572eb0d863f470df8c93cbb5f
SHA1

1f58b684aca32ffc6aa0d2684772bbd72c9aa69c
SHA256

2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777
SHA512

23a8c1283cd5bde134e08850a8663eb772d94ac31ccdd144ee26b4bde5a4a2d575e056dc96c187a2b2a1763bfe63af229c08fa52916b763033c2369b115df48f
SSDEEP

12288:LF9pu9R98DvOx0dy38SeD83S1kAqjxnE8UML789zUO9vVOI0emBmZ:TpCUqxx3lRsJqjxnlGUOdb0emBmZ

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7860252135:AAFnqHLJ-Ng3O61cPpFaVL17gS5Ru2j08qg/sendMessage?chat_id=744079942

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

pid	Process
1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
3	drive.google.com
5	drive.google.com

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
14	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1672	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
1672	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\bedvelsens\Reaccelerates.ske	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.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	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1672	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1672	1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe	30
PID 1304 wrote to memory of 1672	1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe	30
PID 1304 wrote to memory of 1672	1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe	30
PID 1304 wrote to memory of 1672	1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe	30
PID 1304 wrote to memory of 1672	1304	2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe	30

C:\Users\Admin\AppData\Local\Temp\2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
"C:\Users\Admin\AppData\Local\Temp\2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Users\Admin\AppData\Local\Temp\2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe
  "C:\Users\Admin\AppData\Local\Temp\2eb79a7bf871a2a679c26d09845996dfeef3af3106d8708a7244bca3000df777.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Public\Pictures\fedtlderstvles.lnk

Filesize
872B

MD5
8c14401464d7b5a2cf2573a1c1d13456

SHA1
18c8dc8ed8575888285a1ba92c956358fe19189f

SHA256
9a2b1ae252c38321657037d0e55764366acd9f6b0c306161aca768be170a4c3e

SHA512
b89ab23435ffd066442e03ca55705648e32e95e3611c92cd2648b887efe4484900fb4353e81935a2d97cd84d70cf59a8cfd0d18bf501353e83bb63f249006236

Download Submit
\Users\Admin\AppData\Local\Temp\nso699D.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/1304-310-0x0000000077000000-0x00000000771A9000-memory.dmp

Filesize
1.7MB

Download
memory/1304-309-0x0000000077001000-0x0000000077102000-memory.dmp

Filesize
1.0MB

Download
memory/1672-311-0x00000000014D0000-0x0000000005CBC000-memory.dmp

Filesize
71.9MB

Download
memory/1672-312-0x0000000077000000-0x00000000771A9000-memory.dmp

Filesize
1.7MB

Download
memory/1672-316-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1672-334-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1672-336-0x0000000000460000-0x00000000004A8000-memory.dmp

Filesize
288KB

Download
memory/1672-335-0x00000000014D0000-0x0000000005CBC000-memory.dmp

Filesize
71.9MB

Download

Analysis

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