guloader | b4e586ae4fe78a41c0da390b0b7d9e054e93cf62e5f06f9fd62ed946aae0930c

General

Target

Connectible.exe
Size

1.2MB
MD5

40437f4bc8980c7b1aeb9aebc64de972
SHA1

54ec92ddbfdc8ed68591e1563745eedb651c7f29
SHA256

b4e586ae4fe78a41c0da390b0b7d9e054e93cf62e5f06f9fd62ed946aae0930c
SHA512

fd001d0698fe2a7221882005a4e557a1e020b3366688a015370c40214cd29348002286cd6e7a0a8ea2912ba6c671068e82fac5062d8bfa42375a89a5d104159b
SSDEEP

24576:gqG+Vm6IaJe7vTz8Nk95ACjKC4onl8Q3wlRjMPybTJmU8:LGP6IaJe7nSIACjKCxl13ojMPybl6

Score

10^/10

guloader downloader

Malware Config

Signatures

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

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Connectible.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Connectible.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000\Control Panel\International\Geo\Nation	Connectible.exe

Loads dropped DLL 2 IoCs

pid	Process
1680	Connectible.exe
1812	NAPSTAT.EXE

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2832	Connectible.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1680	Connectible.exe
2832	Connectible.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 2832	1680	Connectible.exe	30
PID 2832 set thread context of 1268	2832	Connectible.exe	12
PID 2832 set thread context of 1812	2832	Connectible.exe	34
PID 1812 set thread context of 1268	1812	NAPSTAT.EXE	12

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3849525425-30183055-657688904-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NAPSTAT.EXE

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2832	Connectible.exe
2832	Connectible.exe
2832	Connectible.exe
2832	Connectible.exe
2832	Connectible.exe
2832	Connectible.exe
2832	Connectible.exe
2832	Connectible.exe
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1268	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1680	Connectible.exe
2832	Connectible.exe
1268	Explorer.EXE
1268	Explorer.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE
1812	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	Connectible.exe
Token: SeDebugPrivilege	1812	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2832	1680	Connectible.exe	30
PID 1680 wrote to memory of 2832	1680	Connectible.exe	30
PID 1680 wrote to memory of 2832	1680	Connectible.exe	30
PID 1680 wrote to memory of 2832	1680	Connectible.exe	30
PID 1680 wrote to memory of 2832	1680	Connectible.exe	30
PID 1680 wrote to memory of 2832	1680	Connectible.exe	30
PID 1268 wrote to memory of 1812	1268	Explorer.EXE	34
PID 1268 wrote to memory of 1812	1268	Explorer.EXE	34
PID 1268 wrote to memory of 1812	1268	Explorer.EXE	34
PID 1268 wrote to memory of 1812	1268	Explorer.EXE	34
PID 1812 wrote to memory of 908	1812	NAPSTAT.EXE	36
PID 1812 wrote to memory of 908	1812	NAPSTAT.EXE	36
PID 1812 wrote to memory of 908	1812	NAPSTAT.EXE	36
PID 1812 wrote to memory of 908	1812	NAPSTAT.EXE	36
PID 1812 wrote to memory of 908	1812	NAPSTAT.EXE	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\Connectible.exe
  "C:\Users\Admin\AppData\Local\Temp\Connectible.exe"
  2⤵
  - Checks QEMU agent file
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Users\Admin\AppData\Local\Temp\Connectible.exe
    "C:\Users\Admin\AppData\Local\Temp\Connectible.exe"
    3⤵
    - Checks QEMU agent file
    - Checks computer location settings
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1636
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.EXE"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\vx2dwj8.zip

Filesize
400KB

MD5
a5da69af7949d4105687b2b562dee631

SHA1
dd3d90e088cfe84508db5fed9ec2e5a099acb85b

SHA256
4ce2414b233689a71ff93b56bbb79aecd48329d0ea3bf876e0bf679c19b8db13

SHA512
eca61b4f39c67944b6d98cae45770c7725d8a52e6210939fe46cff826275041751177005678c663f855b0cdb9dd049bf4b4a769e5f23023cf3753a695ff52c9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsi400D.tmp\System.dll

Filesize
11KB

MD5
b0c77267f13b2f87c084fd86ef51ccfc

SHA1
f7543f9e9b4f04386dfbf33c38cbed1bf205afb3

SHA256
a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77

SHA512
f2b57a2eea00f52a3c7080f4b5f2bb85a7a9b9f16d12da8f8ff673824556c62a0f742b72be0fd82a2612a4b6dbd7e0fdc27065212da703c2f7e28d199696f66e

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
770KB

MD5
65f6090dfb069aca962a59f6df9e6113

SHA1
879bad504dfcce1a591c97817f3ff1e63931cfd2

SHA256
32a302d8c235226d8cdda4d957f151df3e5736fdce7886e6c794f0648b2eb106

SHA512
4c0e5e1103749356dceaaaa312e853bda83ec14f2f12288e9020cdf42b6e80d4caaec03d1ef7f34d81ddf2da88e6160c0c711380c2a7d89012e660406cdbb987

Download Submit
memory/1268-74-0x00000000046D0000-0x000000000478F000-memory.dmp

Filesize
764KB

Download
memory/1268-78-0x00000000046D0000-0x000000000478F000-memory.dmp

Filesize
764KB

Download
memory/1268-75-0x00000000046D0000-0x000000000478F000-memory.dmp

Filesize
764KB

Download
memory/1680-23-0x0000000074E70000-0x0000000074E76000-memory.dmp

Filesize
24KB

Download
memory/1680-22-0x0000000077B10000-0x0000000077BE6000-memory.dmp

Filesize
856KB

Download
memory/1680-21-0x0000000077920000-0x0000000077AC9000-memory.dmp

Filesize
1.7MB

Download
memory/1680-20-0x0000000003090000-0x0000000005AC6000-memory.dmp

Filesize
42.2MB

Download
memory/1680-19-0x0000000003090000-0x0000000005AC6000-memory.dmp

Filesize
42.2MB

Download
memory/1812-77-0x0000000001D30000-0x0000000001DCE000-memory.dmp

Filesize
632KB

Download
memory/1812-118-0x0000000061C00000-0x0000000061CB2000-memory.dmp

Filesize
712KB

Download
memory/1812-76-0x00000000000C0000-0x00000000000F6000-memory.dmp

Filesize
216KB

Download
memory/1812-120-0x0000000061C00000-0x0000000061CB2000-memory.dmp

Filesize
712KB

Download
memory/1812-65-0x00000000000C0000-0x00000000000F6000-memory.dmp

Filesize
216KB

Download
memory/1812-73-0x0000000001D30000-0x0000000001DCE000-memory.dmp

Filesize
632KB

Download
memory/1812-72-0x00000000000C0000-0x00000000000F6000-memory.dmp

Filesize
216KB

Download
memory/1812-71-0x0000000002000000-0x0000000002303000-memory.dmp

Filesize
3.0MB

Download
memory/1812-64-0x00000000000C0000-0x00000000000F6000-memory.dmp

Filesize
216KB

Download
memory/2832-26-0x0000000077920000-0x0000000077AC9000-memory.dmp

Filesize
1.7MB

Download
memory/2832-67-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-66-0x0000000001470000-0x0000000003EA6000-memory.dmp

Filesize
42.2MB

Download
memory/2832-62-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-63-0x00000000000C0000-0x00000000000DF000-memory.dmp

Filesize
124KB

Download
memory/2832-56-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-55-0x0000000034240000-0x0000000034543000-memory.dmp

Filesize
3.0MB

Download
memory/2832-54-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-53-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-52-0x0000000001470000-0x0000000003EA6000-memory.dmp

Filesize
42.2MB

Download
memory/2832-51-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-47-0x0000000001470000-0x0000000003EA6000-memory.dmp

Filesize
42.2MB

Download
memory/2832-30-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2832-25-0x0000000001470000-0x0000000003EA6000-memory.dmp

Filesize
42.2MB

Download
memory/2832-24-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads