guloader | 2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039

General

Target

2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Size

748KB
MD5

3c7ef96f2186919b90f142e105648961
SHA1

8ebcf7eb6705ab3132d39ee0dfa086502251a4e8
SHA256

2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039
SHA512

dbae3f0aa744511c1a467be36fbe6363090071dd77c0c10e2dcef94ef0b72cddb5202b80530ebcf05b60aa79499f5c65ae8afb4e21b9f1df45564188f7c0677c
SSDEEP

12288:YF9NQk3J7EcrKNJlrUupNK3y38SeD83S1sAnCPB7SqxnE8UML789zUO9vVOI0emY:Q17FKrlrdjR3lRsxnSB7SqxnlGUOdb0G

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

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
2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.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
16	reallyfreegeoip.org
17	reallyfreegeoip.org
14	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1424	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
1424	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.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	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.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	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1424	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1424	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 1424	2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	31
PID 2412 wrote to memory of 1424	2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	31
PID 2412 wrote to memory of 1424	2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	31
PID 2412 wrote to memory of 1424	2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	31
PID 2412 wrote to memory of 1424	2412	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	31

C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
"C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.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:2412
- C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
  "C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1424

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
f80589ee80bffbcdc114bbe35b0055b1

SHA1
d9443445e5da0cf4f96d0ca60fda5a9c3bb1f0c1

SHA256
19b659eee0e03e97c12fb97dfa442eeed9db565e4e4590528d73bb4fd0129cb9

SHA512
235793e5df9acfca997ea9ae6d83a05474a0817621e1e5e20d1784bba5b2b3cd173e4803749cccaa2b4f2ceaaa356547ec6a007b1c6c1dba9fb5fbe2d4d97838

Download Submit
\Users\Admin\AppData\Local\Temp\nstC6F8.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/1424-313-0x00000000014D0000-0x0000000003587000-memory.dmp

Filesize
32.7MB

Download
memory/1424-314-0x0000000077200000-0x00000000773A9000-memory.dmp

Filesize
1.7MB

Download
memory/1424-315-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1424-335-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/1424-336-0x00000000014D0000-0x0000000003587000-memory.dmp

Filesize
32.7MB

Download
memory/1424-337-0x0000000000460000-0x00000000004AA000-memory.dmp

Filesize
296KB

Download
memory/2412-309-0x0000000002E70000-0x0000000004F27000-memory.dmp

Filesize
32.7MB

Download
memory/2412-311-0x0000000077200000-0x00000000773A9000-memory.dmp

Filesize
1.7MB

Download
memory/2412-310-0x0000000077201000-0x0000000077302000-memory.dmp

Filesize
1.0MB

Download
memory/2412-312-0x0000000002E70000-0x0000000004F27000-memory.dmp

Filesize
32.7MB

Download

Analysis

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