lumma | f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017

General

Target

f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe
Size

1.4MB
MD5

21711f151cc8b0c75e855e021fb51b5a
SHA1

2654602e5cc88f8b026591f2b2475ca54bdde495
SHA256

f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017
SHA512

5a9d250c561e4b489732d5a114a79f341afd561b74a4dd2da846a2f2c5c44f765ccc38db33a4c2ef16429bb8729dbe28edc6278f0d42316f8627f1b862926049
SSDEEP

12288:/RPA73+XNi22eari5eVxpb//64UE61OxgUZ7m81rbqi5XGaKy/B+6OWJLBl+QYe5:ZPA73yc22eEi5eVv/64UENxT91rZ

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

C2

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

https://tacitglibbr.biz/api

Signatures

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma

Loads dropped DLL 1 IoCs

pid	Process
4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4972 set thread context of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1896	4972	WerFault.exe	82

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	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regiis.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84
PID 4972 wrote to memory of 3764	4972	f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe	84

C:\Users\Admin\AppData\Local\Temp\f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe
"C:\Users\Admin\AppData\Local\Temp\f9ecec708bfe25268e7ca2ff29fcf3f7dabd9436af380869fc50afed3d481017.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1028
  2⤵
  - Program crash
  PID:1896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4972 -ip 4972
1⤵
PID:3136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\gdi32.dll

Filesize
432KB

MD5
7df3f45f39c644e54b0ea623d7d4e978

SHA1
8f66e57f88966ea0c8a2349d6fd10337c4f769b1

SHA256
6acc3fe38cab37a6f7a6dd94072745cca626b2cf1b1359803a1adf8a390b81b7

SHA512
f6110b58d616bc9bd4c19c7faba2ed3f8ed35539bc5c6c9b43153ce967e604e75e6d7d058859980e2190e02678f761d5c148418cf8cfe048f1b865abb88c51e8

Download Submit
memory/3764-19-0x00000000006F0000-0x0000000000757000-memory.dmp

Filesize
412KB

Download
memory/3764-15-0x00000000006F0000-0x0000000000757000-memory.dmp

Filesize
412KB

Download
memory/3764-10-0x00000000006F0000-0x0000000000757000-memory.dmp

Filesize
412KB

Download
memory/4972-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/4972-1-0x0000000000260000-0x000000000031E000-memory.dmp

Filesize
760KB

Download
memory/4972-2-0x00000000026F0000-0x00000000026F6000-memory.dmp

Filesize
24KB

Download
memory/4972-8-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4972-20-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4972-21-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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