guloader | 47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179

General

Target

47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
Size

745KB
MD5

e7ba226dadc29e89e6b5d766e09ec7aa
SHA1

86631dec86de9504f9805ce79c06986c7ea112b6
SHA256

47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179
SHA512

f7e7dada4f0d1984a9d0da368cc4b0937a06e92ac7dd03f9668e3e0cf933a09b894551e68481b2d50cad5c7b38158703386d311d92eb7c0ab41851bfcb485931
SSDEEP

12288:oF9MdJNizNPjkJy38SeD83S1VQJ1VdEnxnE8UML789zUO9vVOI0emBmb:AMZy5L3lRsAfd4xnlGUOdb0emBmb

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7489750239:AAEw2JkxSc8H_ozt5TooV_cG6lyHNDmFJi8/sendMessage?chat_id=7050097659

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
1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

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

Web Service

T1102

flow	ioc
4	drive.google.com
5	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
14	checkip.dyndns.org
16	reallyfreegeoip.org
17	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1888	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
1888	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.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	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.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	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1888	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1888	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 1888	1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe	31
PID 1696 wrote to memory of 1888	1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe	31
PID 1696 wrote to memory of 1888	1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe	31
PID 1696 wrote to memory of 1888	1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe	31
PID 1696 wrote to memory of 1888	1696	47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe	31

C:\Users\Admin\AppData\Local\Temp\47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
"C:\Users\Admin\AppData\Local\Temp\47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.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:1696
- C:\Users\Admin\AppData\Local\Temp\47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe
  "C:\Users\Admin\AppData\Local\Temp\47563ed1c4b110ad50d36c9a6a96895b09eb268bad491be453c9d61fee65e179.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1888

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
900B

MD5
a2758407d3d2ac9eea8141eb0d8f01a9

SHA1
411f887296bd099643bf9067d7385e3882cd60ad

SHA256
b0150da59c5d13af1d526766c22a13e78d8f128960d73366a674485b066e5b8b

SHA512
d133df5d7f839fb3d3b2ed42fd275b288028ef142efd2fd34224d3ff0ef80ddd4a3890470a5c2bd1717397f10ae22fd1edeef55072ffcb7d1f1c2fe2b20688c7

Download Submit
\Users\Admin\AppData\Local\Temp\nsoB3F5.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/1696-310-0x0000000077190000-0x0000000077339000-memory.dmp

Filesize
1.7MB

Download
memory/1696-309-0x0000000077191000-0x0000000077292000-memory.dmp

Filesize
1.0MB

Download
memory/1888-311-0x00000000014D0000-0x00000000071A7000-memory.dmp

Filesize
92.8MB

Download
memory/1888-312-0x0000000077190000-0x0000000077339000-memory.dmp

Filesize
1.7MB

Download
memory/1888-313-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1888-334-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1888-336-0x0000000000460000-0x00000000004AA000-memory.dmp

Filesize
296KB

Download
memory/1888-335-0x00000000014D0000-0x00000000071A7000-memory.dmp

Filesize
92.8MB

Download

Analysis

Sharing