lumma | 6c70de6433c7d4e05aaee6447aa4f5ae6cfe5863dd767f1555f7a7d32d648ff4

General

Target

ExL4unch€®.exe
Size

19.2MB
MD5

b2f3fcd2a82e9281542bae77b0828861
SHA1

b5930c2c4ba8ab462f510b316fbfe9a8330dd143
SHA256

6c70de6433c7d4e05aaee6447aa4f5ae6cfe5863dd767f1555f7a7d32d648ff4
SHA512

6b5468132c7019240f49f788716b73d90b6b97bc087574ed1a8e646588155d6477df7fcf863ae60e65c3c7345da2d993735f9b49e1014dbfed3496a7de0229e9
SSDEEP

393216:SoUUNGMqPezRs7v7SARUPcr8wfmkdAPw3Sg:omR87SAR/wCBsQ3

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

C2

https://windpull.cyou/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 6 IoCs

flow	pid	Process
3	2788	msiexec.exe
7	2788	msiexec.exe
9	2788	msiexec.exe
13	2788	msiexec.exe
17	2788	msiexec.exe
19	2788	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2052 set thread context of 1976	2052	ExL4unch€®.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 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	ExL4unch€®.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	more.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2052	ExL4unch€®.exe
2052	ExL4unch€®.exe
1976	more.com
1976	more.com

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2052	ExL4unch€®.exe
1976	more.com

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1976	2052	ExL4unch€®.exe	31
PID 2052 wrote to memory of 1976	2052	ExL4unch€®.exe	31
PID 2052 wrote to memory of 1976	2052	ExL4unch€®.exe	31
PID 2052 wrote to memory of 1976	2052	ExL4unch€®.exe	31
PID 2052 wrote to memory of 1976	2052	ExL4unch€®.exe	31
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33
PID 1976 wrote to memory of 2788	1976	more.com	33

C:\Users\Admin\AppData\Local\Temp\ExL4unch€®.exe
"C:\Users\Admin\AppData\Local\Temp\ExL4unch€®.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\more.com
  C:\Windows\SysWOW64\more.com
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1976
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\SysWOW64\msiexec.exe
    3⤵
    - Blocklisted process makes network request
    - System Location Discovery: System Language Discovery
    PID:2788

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1ffb64d9

Filesize
1.2MB

MD5
2b80d509fd714d26ce44825e394c275a

SHA1
7b5a3b26153f1981556e8d75bc95b4f77bc4f070

SHA256
4c8c17ae8be6259c83feaba4fc114ea0116b506cacd29726758e2b0c1adcc30e

SHA512
1abf0ab67b26b1a4de8a0389ad7464e51bb911de23ffc0a50a97961e575a5b8ee49691716f30c37407d5a7fa36cf8ce07f8b954dd0c6198070a384a6b156a47a

Download Submit
C:\Users\Admin\AppData\Local\Temp\202287dd

Filesize
1.1MB

MD5
f2bf65c7bb35224259189e07538ce124

SHA1
bdc21a267a10cb59351f5cf0258cd592a481100d

SHA256
f916c23e5da4c87774c1b349bfd72c9e764c292e2836086f9213bd7b0bccc96f

SHA512
15142f8d2464e5d386a65567289286139a90f8f7d7f4292080d11877af315e55e1fa85d024668b4f085fb48ebbf468cfe8b8e4c70fc88810fd22aacfa7de2669

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab58DC.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar592D.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1976-16-0x0000000077A90000-0x0000000077C39000-memory.dmp

Filesize
1.7MB

Download
memory/1976-23-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/1976-18-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/1976-19-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/1976-17-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/1976-14-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/2052-10-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/2052-11-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/2052-8-0x0000000077A90000-0x0000000077C39000-memory.dmp

Filesize
1.7MB

Download
memory/2052-0-0x0000000000400000-0x0000000000C29000-memory.dmp

Filesize
8.2MB

Download
memory/2052-9-0x0000000074BE3000-0x0000000074BE5000-memory.dmp

Filesize
8KB

Download
memory/2052-7-0x0000000074BD0000-0x0000000074D44000-memory.dmp

Filesize
1.5MB

Download
memory/2052-1-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2788-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-24-0x0000000077A90000-0x0000000077C39000-memory.dmp

Filesize
1.7MB

Download
memory/2788-25-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download

Analysis

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