guloader | 14384560101a2899411222cff1fc0dc0cd3afdfc1cc57e810c0adadd415157dc

General

Target

Ecesises.exe
Size

563KB
MD5

e2b6b68494a8efe3dcc6eb711bc7a2e9
SHA1

ed38516bd865835abf0b07479494a2b1723d41e4
SHA256

14384560101a2899411222cff1fc0dc0cd3afdfc1cc57e810c0adadd415157dc
SHA512

b4cda8c0a49e9f346129c7fcf47e3f53a5c2626fd0095c3ba94b9ac56e0ad539b180187f480aa2515b3d8391f7e655cc1cd09b41dc7410f048ec16579ce0132d
SSDEEP

12288:+BXPB4M54WaGqJ1YWXgsAgKDkvj90h79mi03O4fGgPO:s4MBaQWQsA/ovpuRm7O3

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	Ecesises.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Ecesises.exe

Loads dropped DLL 1 IoCs

pid	Process
2800	Ecesises.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1332	Ecesises.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2800	Ecesises.exe
1332	Ecesises.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 1332	2800	Ecesises.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe
1332	Ecesises.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2800	Ecesises.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1332	Ecesises.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 1332	2800	Ecesises.exe	30
PID 2800 wrote to memory of 1332	2800	Ecesises.exe	30
PID 2800 wrote to memory of 1332	2800	Ecesises.exe	30
PID 2800 wrote to memory of 1332	2800	Ecesises.exe	30
PID 2800 wrote to memory of 1332	2800	Ecesises.exe	30
PID 2800 wrote to memory of 1332	2800	Ecesises.exe	30

C:\Users\Admin\AppData\Local\Temp\Ecesises.exe
"C:\Users\Admin\AppData\Local\Temp\Ecesises.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\Ecesises.exe
  "C:\Users\Admin\AppData\Local\Temp\Ecesises.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsy8805.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/1332-93-0x0000000001470000-0x0000000003F09000-memory.dmp

Filesize
42.6MB

Download
memory/1332-68-0x0000000001470000-0x0000000003F09000-memory.dmp

Filesize
42.6MB

Download
memory/1332-97-0x00000000342F0000-0x00000000345F3000-memory.dmp

Filesize
3.0MB

Download
memory/1332-96-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/1332-70-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/1332-67-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/1332-95-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/1332-69-0x0000000077470000-0x0000000077619000-memory.dmp

Filesize
1.7MB

Download
memory/1332-94-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/1332-72-0x0000000001470000-0x0000000003F09000-memory.dmp

Filesize
42.6MB

Download
memory/1332-92-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2800-62-0x0000000002EF0000-0x0000000005989000-memory.dmp

Filesize
42.6MB

Download
memory/2800-66-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/2800-63-0x0000000002EF0000-0x0000000005989000-memory.dmp

Filesize
42.6MB

Download
memory/2800-65-0x0000000077660000-0x0000000077736000-memory.dmp

Filesize
856KB

Download
memory/2800-64-0x0000000077470000-0x0000000077619000-memory.dmp

Filesize
1.7MB

Download

Analysis

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