lumma | 74464112df33bed8840ec9006a3362d8b2065a24bcc03d6a602988e2babc10ed

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 07:37

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General

Target

LummaC2 PDFGTR 30.09.2023 03_35_44.zip
Size

269KB
MD5

59cb6190cdf3d4a5bd3237b2593f670c
SHA1

0be7918891ad8c911b4cdbbc0cf2ffe5375c0460
SHA256

74464112df33bed8840ec9006a3362d8b2065a24bcc03d6a602988e2babc10ed
SHA512

20643cfb6999db20a5e7981c3b4f4809e1cad099cfbd2990c4afa52049450b1627c9cabe84ae5fccef622120f88e87e1541d537e03bde6bf9d20fc4ec12f0d62
SSDEEP

6144:+YN2GVwVAT2tn70RKcxA+Ixx2zmtsqBD7zlnazZZK:+YN2GVQtyq3Jsq1nlnaznK

Score

10^/10

lumma discovery stealer

Malware Config

Signatures

Detect Lumma Stealer payload V4 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\7zO8E6A7CD6\LummaC2.exe	family_lumma_v4

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma
Executes dropped EXE 1 IoCs

Processes:

LummaC2.exe

pid process

2408 LummaC2.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:

LummaC2.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LummaC2.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

7zFM.exe

pid process

1768 7zFM.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

7zFM.exe

pid process

1768 7zFM.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7zFM.exe

description pid process

Token: SeRestorePrivilege 1768 7zFM.exe
Token: 35 1768 7zFM.exe
Token: SeSecurityPrivilege 1768 7zFM.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

7zFM.exe

pid process

1768 7zFM.exe
1768 7zFM.exe

pid	process
2408	LummaC2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LummaC2.exe

pid	process
1768	7zFM.exe

pid	process
1768	7zFM.exe

description	pid	process
Token: SeRestorePrivilege	1768	7zFM.exe
Token: 35	1768	7zFM.exe
Token: SeSecurityPrivilege	1768	7zFM.exe

pid	process
1768	7zFM.exe
1768	7zFM.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7zFM.exe

description	pid	process	target process
PID 1768 wrote to memory of 2408	1768	7zFM.exe	LummaC2.exe
PID 1768 wrote to memory of 2408	1768	7zFM.exe	LummaC2.exe
PID 1768 wrote to memory of 2408	1768	7zFM.exe	LummaC2.exe
PID 1768 wrote to memory of 2408	1768	7zFM.exe	LummaC2.exe

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\LummaC2 PDFGTR 30.09.2023 03_35_44.zip"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Local\Temp\7zO8E6A7CD6\LummaC2.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO8E6A7CD6\LummaC2.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2408

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zO8E6A7CD6\LummaC2.exe

Filesize
464KB

MD5
c31a6c985125a3aaab3c47bc5dd4017b

SHA1
e5de8e428613592d8fca3bffdc0a034e2888504e

SHA256
6a9f26cbde375242e55e273a2643c74215baca8951726fc20e47b3e5df887f6b

SHA512
007966c6b361eafee15fd7c454545da0098d3dfe1202dedaf95d4783dfa91ec71f87fa67c0fa684292ded75c8a05cfa0a0908570921a14ab24d88c9ffc4d343f

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