guloader | de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d

General

Target

de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
Size

747KB
MD5

be12d58b91d733a5485688b63aaa4b32
SHA1

ddd0a6456ef8fdb505d2e8c5cbe6321742459298
SHA256

de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d
SHA512

5b5e2f04e6cf3dc27ea5451ef7416304451db73cb88902358282d72bf6697491e494d7c652fde297ee948f04ebbf8538385b61286a108cc1c24f07012b9aab87
SSDEEP

12288:0F9YSXf0yM0l9r1Yk2y38SeD83S1qIFRDRxnE8UML789zUO9vVOI0emBmL:kJXlB9rqY3lRsdrxnlGUOdb0emBmL

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
2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.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
16	checkip.dyndns.org
24	reallyfreegeoip.org
25	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2832	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
2832	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.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	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.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	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2832	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2832	2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe	30
PID 2776 wrote to memory of 2832	2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe	30
PID 2776 wrote to memory of 2832	2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe	30
PID 2776 wrote to memory of 2832	2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe	30
PID 2776 wrote to memory of 2832	2776	de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe	30

C:\Users\Admin\AppData\Local\Temp\de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
"C:\Users\Admin\AppData\Local\Temp\de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.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:2776
- C:\Users\Admin\AppData\Local\Temp\de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.exe
  "C:\Users\Admin\AppData\Local\Temp\de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d.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
882B

MD5
41018ba91b326c4a582b5b622af05feb

SHA1
858bb7394cdccaa27145a7b6b48c74e235e05bd8

SHA256
f28b0dfb70e32f1bc03a6a6faddf41566c0fe98aee4485383efb01b898e29fbd

SHA512
7e9ba1135d22dcb36d39e248f0fd2b48b2865a55566d34b9aaaf08cca6ed0abd0974d2dd3a46d9f9cd3ccb53df92a20b244728fc71695274d2e4239abfe8deb2

Download Submit
\Users\Admin\AppData\Local\Temp\nst3544.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/2776-315-0x0000000002920000-0x0000000004441000-memory.dmp

Filesize
27.1MB

Download
memory/2776-309-0x0000000002920000-0x0000000004441000-memory.dmp

Filesize
27.1MB

Download
memory/2776-310-0x0000000002920000-0x0000000004441000-memory.dmp

Filesize
27.1MB

Download
memory/2776-312-0x0000000077C70000-0x0000000077E19000-memory.dmp

Filesize
1.7MB

Download
memory/2776-311-0x0000000077C71000-0x0000000077D72000-memory.dmp

Filesize
1.0MB

Download
memory/2832-314-0x0000000077C70000-0x0000000077E19000-memory.dmp

Filesize
1.7MB

Download
memory/2832-317-0x0000000077C70000-0x0000000077E19000-memory.dmp

Filesize
1.7MB

Download
memory/2832-316-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/2832-344-0x0000000000460000-0x00000000014C2000-memory.dmp

Filesize
16.4MB

Download
memory/2832-345-0x00000000014D0000-0x0000000002FF1000-memory.dmp

Filesize
27.1MB

Download
memory/2832-346-0x0000000000460000-0x00000000004AA000-memory.dmp

Filesize
296KB

Download

Analysis

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