guloader | e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3

General

Target

e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
Size

740KB
MD5

4fa38b05807f476d8ee68f21fd19bfe6
SHA1

c2ff720a03224ac753db68f6af67b6893065c895
SHA256

e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3
SHA512

9a6196f8e143fb18a02987a2081437956203b49c27e6cc277387219e56e5e75d8b29d4bc15752ff10905cebc4d0f8d655e15e6b3e139a192bdb4d0040c474f7f
SSDEEP

12288:NF9OIpstX2WZRreby38SeD83S1V2dt8IysxnE8UML789zUO9vVOI0emBmV:xOKsN5Rr53lRsVumIysxnlGUOdb0emB4

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot8172976107:AAH5CXqEBGFF-CK18VpImdWAW7U_9296FqY/sendMessage?chat_id=6885960134

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
2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.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 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	checkip.dyndns.org
25	reallyfreegeoip.org
26	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2832	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
2832	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.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	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.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	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2832	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2832	2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe	29
PID 2432 wrote to memory of 2832	2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe	29
PID 2432 wrote to memory of 2832	2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe	29
PID 2432 wrote to memory of 2832	2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe	29
PID 2432 wrote to memory of 2832	2432	e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe	29

C:\Users\Admin\AppData\Local\Temp\e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
"C:\Users\Admin\AppData\Local\Temp\e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.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:2432
- C:\Users\Admin\AppData\Local\Temp\e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe
  "C:\Users\Admin\AppData\Local\Temp\e9f5387c0d3930c8411a98a493979b3c0e1306d26deba3ff3d5a6ee9a36c0cc3.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2832

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
872B

MD5
773d47a60956875577557f95e36a7959

SHA1
569ecb159472df7cb8c2b2ceeddcdbc62f706e0a

SHA256
632ca9ffd4635c6754a1ea9944f6e3054171a3b5d708d8bdfed361c7924439dd

SHA512
cc5e6145e41e4c94e118725b25724955828869d370de9019975e8676a18678dacb15d37f63f47f749c96e6b71f6ac1fc88fb95c3737aed31cb486108daf3b97e

Download Submit
\Users\Admin\AppData\Local\Temp\nsoF9AB.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/2432-309-0x0000000077311000-0x0000000077412000-memory.dmp

Filesize
1.0MB

Download
memory/2432-310-0x0000000077310000-0x00000000774B9000-memory.dmp

Filesize
1.7MB

Download
memory/2832-311-0x00000000014D0000-0x00000000047D0000-memory.dmp

Filesize
51.0MB

Download
memory/2832-312-0x0000000077310000-0x00000000774B9000-memory.dmp

Filesize
1.7MB

Download
memory/2832-334-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/2832-335-0x00000000014D0000-0x00000000047D0000-memory.dmp

Filesize
51.0MB

Download
memory/2832-337-0x0000000000460000-0x00000000004AA000-memory.dmp

Filesize
296KB

Download

Analysis

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