lumma | 8e7d673b86a87c1b77a481d7cf79a1c9ba1d36f5a423b3d61099a6f5edf232fc

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 05:07

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General

Target

wtsapi32.skinny.dll
Size

1.0MB
MD5

fd3fee1a3b59f6a10ac217295b9e01e4
SHA1

be31bf358ffc070cf8e5256931e044793188cb23
SHA256

8e7d673b86a87c1b77a481d7cf79a1c9ba1d36f5a423b3d61099a6f5edf232fc
SHA512

5d18aae2b27bb48d059bafba253d441e0d347297f15fd92bc67860927a6953e538ccbf383b06cc576e3767e62b50020756a139c72164db421eaf60b3aa298683
SSDEEP

24576:bG7utVqoTZE1tZC0/K0EpZuYmsnbracgIL9Dan1lly:bGybXCHM0CpZuTsb4+ant

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

https://suggestyuoz.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

Blocklisted process makes network request 3 IoCs

flow	pid	Process
8	2288	rundll32.exe
13	2288	rundll32.exe
15	2288	rundll32.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29
PID 2148 wrote to memory of 2288	2148	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wtsapi32.skinny.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\wtsapi32.skinny.dll,#1
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab9F2E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9F8F.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2288-0-0x0000000074E40000-0x00000000750DD000-memory.dmp

Filesize
2.6MB

Download
memory/2288-2-0x0000000074E40000-0x00000000750DD000-memory.dmp

Filesize
2.6MB

Download