guloader | 150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee

General

Target

150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe
Size

1.0MB
MD5

ad5493b5261351d24d035968b5040724
SHA1

30d188f983a22fa2c10db86c13ca515af02f46f9
SHA256

150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee
SHA512

fa8095ef44dda4eb8388d9bec7360e12d882cd3173035259e716b9bf2f50924c4f575b0ab8a589397b7cea8c5df8cd3394f9a65fd5715f2adca30b383ef5a4c1
SSDEEP

24576:+5UHg7ycXa8ZYMexXYvRCEOYkYRU2fNYwYtYPY:+uHzfV5ovRH1bqyuXOg

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 2 IoCs

pid	Process
696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe
696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe
4144	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\Gundelet\gleditsia.ini	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.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	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 696 wrote to memory of 4144	696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe	94
PID 696 wrote to memory of 4144	696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe	94
PID 696 wrote to memory of 4144	696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe	94
PID 696 wrote to memory of 4144	696	150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe	94

C:\Users\Admin\AppData\Local\Temp\150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe
"C:\Users\Admin\AppData\Local\Temp\150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:696
- C:\Users\Admin\AppData\Local\Temp\150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe
  "C:\Users\Admin\AppData\Local\Temp\150fd2376495248906fe73ebcb41b3d0e085f00d1a814ef9b0cae8fd211db3ee.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:4144

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

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsm97AD.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
C:\Users\Admin\Quiddler\markus\superceded\Lajkas\Staffagefigur\Barselspatienters\ned.ini

Filesize
34KB

MD5
46d760ff5d80888a54a38d5bd968c3b9

SHA1
074ffba863941492da6fceb711fc6f6d49884d62

SHA256
89da4d13eedf0d1128752be5993608a45d8b1d3377ce852cac6938c0514f7952

SHA512
5c1429bc19c1c154a746ba09376d35293b60a4f95196db3acbbc738d4f3a65c93fc67bdcfc4d15db5485d4bf8cc7bddd8d93c150e2760c88b1bca8aef0cb27c8

Download Submit
memory/696-29-0x00000000032E0000-0x000000000518D000-memory.dmp

Filesize
30.7MB

Download
memory/696-30-0x0000000077B31000-0x0000000077C51000-memory.dmp

Filesize
1.1MB

Download
memory/696-31-0x00000000032E0000-0x000000000518D000-memory.dmp

Filesize
30.7MB

Download
memory/696-32-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/4144-33-0x0000000001660000-0x000000000350D000-memory.dmp

Filesize
30.7MB

Download
memory/4144-34-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4144-35-0x0000000001660000-0x000000000350D000-memory.dmp

Filesize
30.7MB

Download
memory/4144-36-0x0000000077BB8000-0x0000000077BB9000-memory.dmp

Filesize
4KB

Download
memory/4144-37-0x0000000001660000-0x000000000350D000-memory.dmp

Filesize
30.7MB

Download
memory/4144-38-0x0000000077BD5000-0x0000000077BD6000-memory.dmp

Filesize
4KB

Download
memory/4144-39-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4144-40-0x0000000077B31000-0x0000000077C51000-memory.dmp

Filesize
1.1MB

Download

Analysis

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