guloader | 0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b

General

Target

0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe
Size

981KB
MD5

7644ebbf786053ffaf95dbe86b7de5d4
SHA1

5d563fb10f6d71049ae5f69fb6ccb9f2217ddf32
SHA256

0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b
SHA512

d2da4f4ce1d26aca8e497e0d889d34ce9a4ec06b50245eb29a1feb7c7c20fce281e0dbefa37d234230163ebeaa602f1a49edee312024628387d2759896434a3c
SSDEEP

24576:ynE9Wlvj9UENDYuRe5In2hINGct2YBD9w254CQ+K1Q:yEiJUTOn2hINGctTDOBC7

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot8148338634:AAFvLNrhxaF7bMPzQMLbUnueRMJvDIi5kcU/sendMessage?chat_id=7698865320

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 1 IoCs

pid	Process
2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

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

Web Service

T1102

flow	ioc
3	drive.google.com
4	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
2720	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe
2720	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\olieaffald\Unconsummative103.pro	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe
File opened for modification	C:\Windows\rocksanger\noninfluential.ini	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.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	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2720	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30
PID 2384 wrote to memory of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30
PID 2384 wrote to memory of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30
PID 2384 wrote to memory of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30
PID 2384 wrote to memory of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30
PID 2384 wrote to memory of 2720	2384	0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe	30

C:\Users\Admin\AppData\Local\Temp\0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe
"C:\Users\Admin\AppData\Local\Temp\0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe
  "C:\Users\Admin\AppData\Local\Temp\0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2720

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

\Users\Admin\AppData\Local\Temp\nsjF0C6.tmp\System.dll

Filesize
11KB

MD5
fc90dfb694d0e17b013d6f818bce41b0

SHA1
3243969886d640af3bfa442728b9f0dff9d5f5b0

SHA256
7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

SHA512
324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

Download Submit
memory/2384-14-0x0000000003F80000-0x0000000005543000-memory.dmp

Filesize
21.8MB

Download
memory/2384-15-0x00000000772B1000-0x00000000773B2000-memory.dmp

Filesize
1.0MB

Download
memory/2384-16-0x00000000772B0000-0x0000000077459000-memory.dmp

Filesize
1.7MB

Download
memory/2384-17-0x0000000003F80000-0x0000000005543000-memory.dmp

Filesize
21.8MB

Download
memory/2720-18-0x00000000772B0000-0x0000000077459000-memory.dmp

Filesize
1.7MB

Download
memory/2720-40-0x00000000004A0000-0x0000000001502000-memory.dmp

Filesize
16.4MB

Download
memory/2720-41-0x00000000004A0000-0x00000000004E8000-memory.dmp

Filesize
288KB

Download
memory/2720-42-0x00000000004A0000-0x0000000001502000-memory.dmp

Filesize
16.4MB

Download

Analysis

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