guloader | c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86

General

Target

c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
Size

737KB
MD5

df8c4ee84f3897880922002188c2ffd8
SHA1

80e151b2aae8383523eabeaafe54dc6b19986eb6
SHA256

c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86
SHA512

3960d5372e36dd6c6bb72ea79c8ac5f6964da1a2b5119e68efdf9780d84b408ba8283c3908c8f75b89278f466f991ff5b29b941289575e07a341b56b545b8dd0
SSDEEP

12288:yF9S8t23Nm7o/1D220Hy38SeD83S1a37vsQoejUxnE8UML789zUO9vVOI0emBmGu:mS8t3y1DZ3lRsa37kpegxnlGUOdb0emo

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7809339088:AAEUtMa_u0dd_zBfAWh2Ah2az4h6hNs_Wg0/sendMessage?chat_id=7618581100

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
2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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 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
1004	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
1004	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1004	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 1004	2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	31
PID 2068 wrote to memory of 1004	2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	31
PID 2068 wrote to memory of 1004	2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	31
PID 2068 wrote to memory of 1004	2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	31
PID 2068 wrote to memory of 1004	2068	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	31

C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
"C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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:2068
- C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
  "C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1004

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

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Downloads

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

Filesize
916B

MD5
13441b8d19c1817f92ec3e6a161de303

SHA1
516a4acd348fbc3bcd3a4966b05ca6bea09d291c

SHA256
dbd74beb102ba2ea8d2109bc5996e6a49ecbf1875e9926d37c06d17cd7b56772

SHA512
d0393507a919eb24ddd9e1e0142b22c438d71826581d70c670b16c835028f9f4538236a526c01ceaa7c9e94e640faf788012229a3eb2db43cd127a4d32e447b9

Download Submit
\Users\Admin\AppData\Local\Temp\nsoAD8F.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/1004-311-0x00000000014D0000-0x0000000006EC7000-memory.dmp

Filesize
90.0MB

Download
memory/1004-312-0x00000000777B0000-0x0000000077959000-memory.dmp

Filesize
1.7MB

Download
memory/1004-313-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1004-333-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1004-334-0x00000000014D0000-0x0000000006EC7000-memory.dmp

Filesize
90.0MB

Download
memory/1004-335-0x0000000000460000-0x00000000004A8000-memory.dmp

Filesize
288KB

Download
memory/2068-309-0x00000000777B1000-0x00000000778B2000-memory.dmp

Filesize
1.0MB

Download
memory/2068-310-0x00000000777B0000-0x0000000077959000-memory.dmp

Filesize
1.7MB

Download

Analysis

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