fbfdc2c6f3d5576d236a010ee6b87edf61cfc06382acc9c5a1f4c3286a6b7378

General

Target

Bemaerke.exe
Size

1.2MB
MD5

0f607ada4eb3397b1df8c14c3907e5e0
SHA1

9bdc3632f763b1f457d7911c66ad5dd549c46751
SHA256

fbfdc2c6f3d5576d236a010ee6b87edf61cfc06382acc9c5a1f4c3286a6b7378
SHA512

f505221e05557bd431c7f07c521cd6a76dc4346602134a2337240cba413cb89f659342508d0ac8105e9d9a88c475a4395b495e7c9f3ea95194222be559443155
SSDEEP

24576:nO/lnSVsiwc+fCSbU9GDJ+WXgsUOp6H1W5tp0UNJ8gc+8my:nunChibY9GDJHUOUVKtKU38X5my

Score

7^/10

Malware Config

Signatures

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Bemaerke.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Bemaerke.exe

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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	Bemaerke.exe

Loads dropped DLL 1 IoCs

pid	Process
1436	Bemaerke.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1668	Bemaerke.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1436	Bemaerke.exe
1668	Bemaerke.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1436 set thread context of 1668	1436	Bemaerke.exe	82
PID 1668 set thread context of 692	1668	Bemaerke.exe	77

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
5008	systray.exe
5008	systray.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
1436	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe
1668	Bemaerke.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	Bemaerke.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 1668	1436	Bemaerke.exe	82
PID 1436 wrote to memory of 1668	1436	Bemaerke.exe	82
PID 1436 wrote to memory of 1668	1436	Bemaerke.exe	82
PID 1436 wrote to memory of 1668	1436	Bemaerke.exe	82
PID 692 wrote to memory of 5008	692	Explorer.EXE	83
PID 692 wrote to memory of 5008	692	Explorer.EXE	83
PID 692 wrote to memory of 5008	692	Explorer.EXE	83

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:692
- C:\Users\Admin\AppData\Local\Temp\Bemaerke.exe
  "C:\Users\Admin\AppData\Local\Temp\Bemaerke.exe"
  2⤵
  - Checks QEMU agent file
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Users\Admin\AppData\Local\Temp\Bemaerke.exe
    "C:\Users\Admin\AppData\Local\Temp\Bemaerke.exe"
    3⤵
    - Checks QEMU agent file
    - Checks computer location settings
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1668
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

1

T1102

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsz866D.tmp\System.dll

Filesize
11KB

MD5
4d3b19a81bd51f8ce44b93643a4e3a99

SHA1
35f8b00e85577b014080df98bd2c378351d9b3e9

SHA256
fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce

SHA512
b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622

Download Submit
memory/692-163-0x00000000088B0000-0x00000000089BD000-memory.dmp

Filesize
1.1MB

Download
memory/1668-162-0x0000000036280000-0x00000000365CA000-memory.dmp

Filesize
3.3MB

Download
memory/1668-158-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1668-159-0x0000000001660000-0x0000000005C09000-memory.dmp

Filesize
69.7MB

Download
memory/1668-160-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1668-145-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1668-144-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1668-164-0x00000000000C0000-0x00000000000D0000-memory.dmp

Filesize
64KB

Download
memory/1668-166-0x0000000001660000-0x0000000005C09000-memory.dmp

Filesize
69.7MB

Download
memory/1668-168-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/5008-165-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/5008-167-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/5008-169-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download
memory/5008-170-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads