dec38c01fb4919cb36510e11966b44b0a645150db0453c1d99865130b434b04c

Analysis

max time kernel
142s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-08-2024 03:51

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General

Target

Payment Advice____xlsx.exe
Size

160KB
MD5

eb095eb21bb3e08a1ce7705ad3c9b06a
SHA1

1ce05bf7caac0ad9b7daded79653c9d106db3c86
SHA256

55bc57b1996aa965f40419a7a6c02a711b36ae03709cb09acef7ca47b50cd3e1
SHA512

82eaa33cf43fc77350a897cfdf61d266cb419ea5ffcc3cc8c92cc73855c724d116caf032254cd26a1102e745a4871228c3b24159f9fe804c5661d07fb56d5b29
SSDEEP

3072:7AwC5wP7dePo8fCcFbZgzKJ/n4crjfpyZrmfLrqt6ogVL32ElovB:7x/M/ZgzKtn4cfBSr6tTzloJ

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1056	4672	WerFault.exe	83

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment Advice____xlsx.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe
4672	Payment Advice____xlsx.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 3156	4672	Payment Advice____xlsx.exe	84
PID 4672 wrote to memory of 3156	4672	Payment Advice____xlsx.exe	84
PID 4672 wrote to memory of 3156	4672	Payment Advice____xlsx.exe	84

C:\Users\Admin\AppData\Local\Temp\Payment Advice____xlsx.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Advice____xlsx.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Local\Temp\Payment Advice____xlsx.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Advice____xlsx.exe"
  2⤵
  PID:3156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 1036
  2⤵
  - Program crash
  PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4672 -ip 4672
1⤵
PID:2128

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsx8D0E.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
C:\Users\Admin\AppData\Local\Temp\vynl0gnzsf.dll

Filesize
17KB

MD5
9d511fba89bde65b4e28210b010c9d77

SHA1
cc46b5a117ca777a723422e9c68838f8e675598f

SHA256
3687fab11f377acc4d63b693a02ab21d14c22911f289b3ad8b19011400adc758

SHA512
fae30a137f093179716b780fce6ecb952abdaeeebc63745ae2cf5bd553203a252cfa5edd1c91bc31b2813dd3124c7282ae7ae706583a5bef1952cf78bcee29bb

Download Submit
memory/4672-9-0x0000000010000000-0x0000000010007000-memory.dmp

Filesize
28KB

Download
memory/4672-10-0x0000000010000000-0x0000000010007000-memory.dmp

Filesize
28KB

Download