masslogger | bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767

General

Target

bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe
Size

822KB
MD5

2d6e2e5246a199facabc1e85710ffadf
SHA1

6646268d847037b42badf41a631ea60c523731c7
SHA256

bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767
SHA512

fa9f81e77296884e39621a833727eeb413bcfb7972564ef7bdf834bfb3f0cb03c125b086c5c6e4db2e2dda66ce2f26527116bd4a45c9ada5377ebcec51b2dc3a

Score

10^/10

masslogger ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 5:50:34 PM MassLogger Started: 5/24/2022 5:50:18 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2008-65-0x00000000004A2D9E-mapping.dmp	family_masslogger
behavioral1/memory/2008-64-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/2008-62-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 892 set thread context of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2032	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2008	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2008	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe
2008	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2008	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 2032	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	29
PID 892 wrote to memory of 2032	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	29
PID 892 wrote to memory of 2032	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	29
PID 892 wrote to memory of 2032	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	29
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30
PID 892 wrote to memory of 2008	892	bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe	30

C:\Users\Admin\AppData\Local\Temp\bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe
"C:\Users\Admin\AppData\Local\Temp\bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:892
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ErhKIaN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9696.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2032
- C:\Users\Admin\AppData\Local\Temp\bac3ee462346b1c7a215087d1dee33366fc020632c719f7f6416b0f586bd4767.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9696.tmp

Filesize
1KB

MD5
f679a0a4c31dfcf2cc84f05a63c57593

SHA1
332f853f80ce7e9f4025eac95412d9898d47d9dd

SHA256
29e91647e5f7ad4cbcc52bf85961b6b0015270efb7c9373869fbe7dc30d6c199

SHA512
9621399226e3d899e257253d9f97f03849970b6532cabe79bd3cb50647e1bc4f67a488d0926464acc0e41556104c93608809a1c5a953049630b10f591363ac9d

Download Submit
memory/892-55-0x0000000000460000-0x0000000000476000-memory.dmp

Filesize
88KB

Download
memory/892-56-0x0000000005040000-0x00000000050EE000-memory.dmp

Filesize
696KB

Download
memory/892-54-0x0000000000C50000-0x0000000000D24000-memory.dmp

Filesize
848KB

Download
memory/2008-69-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-59-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-63-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-67-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-64-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-62-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-60-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2008-70-0x0000000000540000-0x0000000000584000-memory.dmp

Filesize
272KB

Download
memory/2008-71-0x00000000755C1000-0x00000000755C3000-memory.dmp

Filesize
8KB

Download
memory/2008-72-0x0000000000B65000-0x0000000000B76000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads