guloader | c192c16aba9f5bb5ce6eca9e5fff24bbc290e5b820f94868466a61f6d0a2df8e

Analysis

max time kernel
19s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-10-2024 14:25

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General

Target

FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe
Size

729KB
MD5

fb4e88fe6e801bd1770fa1b91ead7bfa
SHA1

3739fd72191b66dce2213abf4ae610ede85efbca
SHA256

c192c16aba9f5bb5ce6eca9e5fff24bbc290e5b820f94868466a61f6d0a2df8e
SHA512

388e96504ab2590600349a91066882a2ce5f3acf74431ae4d6b02475e443a660eb9f374380159f46384ab401bcd56cff053eac4c553ddfd1b767bfa0ea8e9ad2
SSDEEP

12288:DhoX5zcKxyCiN0DSNYCqbf07Ku7DdrJ++F6DJIG6pWu2PACkfwFLuz:Dw4U80DUY1bfyKQ9c+IDPhu2PAX7

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

Processes:

FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

pid	process
2380	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe
2380	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2572 2380 WerFault.exe FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

pid	pid_target	process	target process
2572	2380	WerFault.exe	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe

description	pid	process	target process
PID 2380 wrote to memory of 2572	2380	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe	WerFault.exe
PID 2380 wrote to memory of 2572	2380	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe	WerFault.exe
PID 2380 wrote to memory of 2572	2380	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe	WerFault.exe
PID 2380 wrote to memory of 2572	2380	FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe
"C:\Users\Admin\AppData\Local\Temp\FUNDS TRANSFER - 000009442004 - OUTWARD PAYMENT ADVICE pdf.pif.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 536
2⤵
- Program crash
PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsu4201.tmp\System.dll

Filesize
11KB

MD5
c61501f07cf09bcfcdfe4cc8a1ebbbe3

SHA1
e8581b4359651b857646ae727efaaef372daa0fc

SHA256
7e75f148920db6300dad5a1c12fd5d6eecc95698a310a01311181bc98a704d55

SHA512
9837abe7ec3fa0f1f5193968d12b7ca1893e34eddf628db1f7ab6715b4de339231f0ec1b5f0f86c767f5a30c40da5c4a95e99deedd22eece93cb0d00539aad24

Download Submit
memory/2380-27-0x0000000003490000-0x0000000005756000-memory.dmp

Filesize
34.8MB

Download
memory/2380-28-0x0000000003490000-0x0000000005756000-memory.dmp

Filesize
34.8MB

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