djvu | cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32

General

Target

e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
Size

787KB
MD5

e9d42b34d47437c77e99450f1af86c33
SHA1

5766d7dc892e885647aa321a21b25eef28a6812a
SHA256

cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32
SHA512

ec0c355d90949ff9b98ca8981e56a60a2513239c818bccd267dd6a0c001c589d478e4e02032954de1d043cbaed2d445291f9d5fcbc7a4386ee3c891eee873f62
SSDEEP

24576:hJ3iLlDe8u88qbcrvybqFTCDWUDrtrK6xlJXXQiH8aMjLBPA:h0LRlnbRbqp+LDrtrKAlBWBI

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/nddddhsspen6/get.php

Attributes

extension
.moqs
offline_id
CatwRkqdYh2Jomn6DqwFoGgcSbDsle1xlE1NPtt1
payload_url
http://securebiz.org/dl/build2.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral2/memory/1916-2-0x0000000002780000-0x000000000289B000-memory.dmp	family_djvu
behavioral2/memory/4940-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4940-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4940-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4940-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4940-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3740-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3856	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b4851654-064b-4b9d-bd16-4d2839606b06\\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe\" --AutoStart"	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
12	api.2ip.ua
19	api.2ip.ua
10	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 2676 set thread context of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
3740	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
3740	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 1916 wrote to memory of 4940	1916	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	89
PID 4940 wrote to memory of 3856	4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	90
PID 4940 wrote to memory of 3856	4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	90
PID 4940 wrote to memory of 3856	4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	90
PID 4940 wrote to memory of 2676	4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	91
PID 4940 wrote to memory of 2676	4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	91
PID 4940 wrote to memory of 2676	4940	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	91
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95
PID 2676 wrote to memory of 3740	2676	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	95

C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4940
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b4851654-064b-4b9d-bd16-4d2839606b06" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3856
- - C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2676
  - - C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
1KB

MD5
fc5408c48a55314c72e200b74330cac4

SHA1
7e8889ec3189a40e6078088927bf3612753fa628

SHA256
7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4

SHA512
481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
410B

MD5
03bdae54c3d11dbf90458291f867f805

SHA1
fe751477bf18ab45650ec80bc3033ca765f5504e

SHA256
a47b3473fc6aebf9ea00b432f572cb90ae4c4ba885dce7cf44f2f914d37369a8

SHA512
883da9aa1edcc3b9047c171c704e8bfff6f9504d1a19e99244bdc47c221ab19694ce250e40e3e97dd3d8c4d9c2112f9c3a4ddca7dee570a7776746b1ff026da7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
fdcb1c532d2cfee2c5df2eaa85c7300b

SHA1
cc7a20dc5217655cd82e60ea2e1d5f9011d02ce6

SHA256
893d7969b975822d386880ae466d853ea2a7b75d67a377212665ccc4f168463b

SHA512
20b6ec6867ec9e4be175888d43c53e3e2b28e10a44c9ad41837a54955256305953db025a64017dcbc5cbb34efc93b96a9a9df3ea66077dd8a11ecd580646a706

Download Submit
C:\Users\Admin\AppData\Local\b4851654-064b-4b9d-bd16-4d2839606b06\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

Filesize
787KB

MD5
e9d42b34d47437c77e99450f1af86c33

SHA1
5766d7dc892e885647aa321a21b25eef28a6812a

SHA256
cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32

SHA512
ec0c355d90949ff9b98ca8981e56a60a2513239c818bccd267dd6a0c001c589d478e4e02032954de1d043cbaed2d445291f9d5fcbc7a4386ee3c891eee873f62

Download Submit
memory/1916-1-0x0000000002670000-0x000000000270A000-memory.dmp

Filesize
616KB

Download
memory/1916-2-0x0000000002780000-0x000000000289B000-memory.dmp

Filesize
1.1MB

Download
memory/2676-19-0x0000000002400000-0x0000000002495000-memory.dmp

Filesize
596KB

Download
memory/3740-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4940-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4940-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4940-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4940-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4940-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads